War Of The Third Coalition
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The War of the Third Coalition () was a European conflict lasting from 1805 to 1806 and was the first conflict of the
Napoleonic Wars {{Infobox military conflict , conflict = Napoleonic Wars , partof = the French Revolutionary and Napoleonic Wars , image = Napoleonic Wars (revision).jpg , caption = Left to right, top to bottom:Battl ...
. During the war,
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
and its client states under
Napoleon I Napoleon Bonaparte (born Napoleone di Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French general and statesman who rose to prominence during the French Revolution and led Military career ...
and its ally
Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
opposed an alliance, the Third Coalition, which was made up of the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
, the
Austrian Empire The Austrian Empire, officially known as the Empire of Austria, was a Multinational state, multinational European Great Powers, great power from 1804 to 1867, created by proclamation out of the Habsburg monarchy, realms of the Habsburgs. Duri ...
, the
Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
,
Naples Naples ( ; ; ) is the Regions of Italy, regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 908,082 within the city's administrative limits as of 2025, while its Metropolitan City of N ...
,
Sicily Sicily (Italian language, Italian and ), officially the Sicilian Region (), is an island in the central Mediterranean Sea, south of the Italian Peninsula in continental Europe and is one of the 20 regions of Italy, regions of Italy. With 4. ...
, and
Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...
.
Prussia Prussia (; ; Old Prussian: ''Prūsija'') was a Germans, German state centred on the North European Plain that originated from the 1525 secularization of the Prussia (region), Prussian part of the State of the Teutonic Order. For centuries, ...
remained neutral during the war. Britain had already been at war with France following the breakdown of the
Peace of Amiens The Treaty of Amiens (, ) temporarily ended hostilities between France, the Spanish Empire, and the United Kingdom at the end of the War of the Second Coalition. It marked the end of the French Revolutionary Wars; after a short peace it set t ...
and remained the only country still at war with France after the Treaty of Pressburg. From 1803 to 1805, Britain stood under constant threat of a French invasion. The
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
, however, assured its naval dominance at the
Battle of Trafalgar The Battle of Trafalgar was a naval engagement that took place on 21 October 1805 between the Royal Navy and a combined fleet of the French Navy, French and Spanish Navy, Spanish navies during the War of the Third Coalition. As part of Na ...
in October 1805. The Third Coalition itself came to full fruition in 1804–05 as Napoleon's actions in Italy and Germany (notably the arrest and execution of the Duc d'Enghien) spurred Austria and Russia into joining Britain against France. The war would be determined on the continent, and the major land operations that sealed the swift French victory involved the
Ulm Campaign The Ulm campaign was a series of French and Bavarian military maneuvers and battles to outflank and capture an Austrian army in 1805 during the War of the Third Coalition. It took place in the vicinity of and inside the Swabian city of Ulm. ...
, a large wheeling manoeuvre by the lasting from late August to mid-October 1805 that captured an entire Austrian army, and the decisive French victory over a combined Austro-Russian force under
Alexander I of Russia Alexander I (, ; – ), nicknamed "the Blessed", was Emperor of Russia from 1801, the first king of Congress Poland from 1815, and the grand duke of Finland from 1809 to his death in 1825. He ruled Russian Empire, Russia during the chaotic perio ...
at the
Battle of Austerlitz The Battle of Austerlitz (2 December 1805/11 Frimaire An XIV French Republican calendar, FRC), also known as the Battle of the Three Emperors, was one of the most important military engagements of the Napoleonic Wars. The battle occurred near t ...
in early December. Austerlitz effectively brought the Third Coalition to an end, although later there was a small side campaign against Naples, which also resulted in a decisive French victory at the Battle of Campo Tenese. On 26 December 1805, Austria and France signed the Treaty of Pressburg, which took Austria out of both the war and the Coalition, while it reinforced the earlier treaties of Campo Formio and of Lunéville between the two powers. The treaty confirmed the Austrian cession of lands in Italy to France and in Germany to Napoleon's German allies, imposed an indemnity of 40 million francs on the defeated Habsburgs, and allowed the defeated Russian troops free passage, with their arms and equipment, through hostile territories and back to their home soil. Victory at Austerlitz also prompted Napoleon to create the
Confederation of the Rhine The Confederated States of the Rhine, simply known as the Confederation of the Rhine or Rhine Confederation, was a confederation of German client states established at the behest of Napoleon some months after he defeated Austrian Empire, Austria ...
, a collection of German client states that pledged themselves to raise an army of 63,000 men. As a direct consequence of those events, the
Holy Roman Empire The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...
ceased to exist when, in 1806, Francis II abdicated the Imperial throne, becoming Francis I, Emperor of Austria. Those achievements, however, did not establish a lasting peace on the continent. Austerlitz had driven neither Russia nor Britain, whose fleet protected Sicily from a French invasion, to cease fighting. Meanwhile, Prussian worries about the growing French influence in
Central Europe Central Europe is a geographical region of Europe between Eastern Europe, Eastern, Southern Europe, Southern, Western Europe, Western and Northern Europe, Northern Europe. Central Europe is known for its cultural diversity; however, countries in ...
sparked the
War of the Fourth Coalition The War of the Fourth Coalition () was a war spanning 1806–1807 that saw a multinational coalition fight against Napoleon's First French Empire, French Empire, subsequently being defeated. The main coalition partners were Kingdom of Prussia, ...
in 1806.


Periodisation

Historians differ on when the War of the Third Coalition began and when it ended. From the British perspective, the war started when Britain declared war on France on 18 May 1803, but it was still on its own. It was not until December 1804 when Sweden entered into an alliance with the United Kingdom, not until 11 April 1805 when Russia joined the alliance, not until 16 July when Britain and Russia ratified their treaty of alliance, and only thereafter Austria (9 August) and Naples–Sicily (11 September) completed the fully-fledged coalition. Meanwhile,
Bavaria Bavaria, officially the Free State of Bavaria, is a States of Germany, state in the southeast of Germany. With an area of , it is the list of German states by area, largest German state by land area, comprising approximately 1/5 of the total l ...
sided with France on 25 August following the Treaty of Bogenhausen, and
Württemberg Württemberg ( ; ) is a historical German territory roughly corresponding to the cultural and linguistic region of Swabia. The main town of the region is Stuttgart. Together with Baden and Province of Hohenzollern, Hohenzollern, two other histo ...
joined Napoleon on 5 September. No major hostilities between France and any member of the coalition other than Britain (
Trafalgar campaign The Trafalgar campaign was a long and complicated series of fleet manoeuvres carried out by the combined French Navy, French and Spanish Navy, Spanish fleets; and the opposing moves of the Royal Navy during much of 1805. These were the culmina ...
March–November 1805) occurred until the
Ulm Campaign The Ulm campaign was a series of French and Bavarian military maneuvers and battles to outflank and capture an Austrian army in 1805 during the War of the Third Coalition. It took place in the vicinity of and inside the Swabian city of Ulm. ...
(25 September – 20 October 1805). This was in part because
Napoleon's planned invasion of the United Kingdom Napoleon's planned invasion of the United Kingdom at the start of the War of the Third Coalition, although never carried out, was a major influence on British naval strategy and the fortification of the coast of South East England. In 1796 the Fre ...
was not called off until 27 August 1805, when he decided to use his invasion force camped at Boulogne against Austria instead. Likewise, no major battles occurred after the Battle of Austerlitz and the signing of the Peace of Pressburg on 26 December 1805, which forced Austria to leave the Third Coalition and cease hostilities against France. Some historians conclude that Austria's departure "shattered the fragile Third Coalition" and "ended the War of the Third Coalition". This narrative leaves out the subsequent French invasion of Naples (February–July 1806), which the occupying Anglo-Russian troops hastily evacuated and the remaining Neapolitan forces relatively quickly surrendered. Other scholars argue the southern Italian campaign should be included into the
War of the Second Coalition The War of the Second Coalition () (1798/9 – 1801/2, depending on periodisation) was the second war targeting French Revolution, revolutionary French First Republic, France by many European monarchies, led by Kingdom of Great Britain, Britai ...
, and criticise ignoring the Mediterranean front by only focusing on land battles in Central Europe and the Trafalgar campaign.


Prelude


From Amiens to the Third Coalition

In March 1802, hostilities between France and the Allies came to an end. However it was clear to the leading European politicians, and especially to Napoleon, that the peace treaties of Lunéville (1801) and Amiens (1802), which ended the Second War of Coalition, were not a lasting solution. Tensions between Napoleon-ruled France and Great Britain had been rising again since the second half of 1802. The fact that Napoleon played an active role in the Caribbean contributed to this. There were also indications that he was once again interested in Egypt and the Middle East. There were reports in French newspapers that 10,000 men would be enough to reconquer Egypt. In Italy, Napoleon increased his influence when he transformed the Cisalpine Republic into the Italian Republic and made himself president. He annexed Piedmont to France. Contrary to the peace treaty of Amiens, the French army was not withdrawn from the Netherlands; instead, the Batavian Republic was given a new constitution based on the French model. The Helvetic Republic was also closely dependent on France. Napoleon had given the country a new federalist constitution with the Act of Mediation. At the same time, the country had had to bind itself politically to France for fifty years. The peace treaty stipulated that Great Britain was to return all conquered territories except Ceylon and Trinidad to their respective previous owners. Minorca to Spain and Malta to the Order of St. John. In return, France was to leave Egypt and Naples and guarantee the independence of Portugal and the Ionian Islands. In order to prevent Napoleon from advancing further into the Levant, it was necessary for Great Britain to keep Malta and a fleet in the Mediterranean. Russia's interest in Malta offered Napoleon an ideal opportunity for a war in which he hoped to play Britain and Russia off against each other. Napoleon indirectly threatened war on 13 March 1803 when he criticized Britain's refusal to fully implement the terms of the Treaty of Amiens to British ambassador Lord Whitworth. Whitworth returned to London and shortly afterwards, on May 18, Great Britain declared war on France.


Setting up the opposing forces

When Napoleon crowned himself Emperor on December 2, 1804, Austria and Prussia may have been alarmed, but the annexed Italian city-states of Genoa, Parma and Piacenza and his coronation as King of Italy left no doubt as to Napoleon's intentions. On January 21, 1805, Prime Minister William Pitt the Younger presented a treaty of alliance with Russia and Austria. The demands of this treaty were the restoration of the Kingdom of Piedmont-Sardinia, the withdrawal of French troops from Italy, the dissolution of the Batavian Republic and the restoration of Switzerland's independence. In the event of Napoleon's refusal, England would support the coalition forces financially. After all difficulties had been resolved, Great Britain, Austria and Russia signed a treaty on August 9, 1805, forming the third coalition against Napoleon. Prussia remained neutral. On the other side, Napoleon built an alliance of various southern German members of the Holy Roman Empire. These included Württemberg, Bavaria and Baden, which benefited from the Reichsdeputationshauptschluss of February 25, 1803. These enlarged states were in line with Napoleon's calculations. They were to weaken Austria, but were themselves too weak to pose a threat to France.


at Boulogne

Prior to the formation of the Third Coalition, Napoleon had assembled the ''Army of England'', an invasion force meant to strike at England, from around six camps at
Boulogne Boulogne-sur-Mer (; ; ; or ''Bononia''), often called just Boulogne (, ), is a coastal city in Hauts-de-France, Northern France. It is a Subprefectures in France, sub-prefecture of the Departments of France, department of Pas-de-Calais. Boul ...
in Northern France. Although they never set foot on British soil, Napoleon's troops received careful and invaluable training for any possible military operation. Boredom among the troops occasionally set in, but Napoleon paid many visits and conducted lavish parades in order to boost the morale of the soldiers. The men at Boulogne formed the core for what Napoleon would later call ("The Great Army"). At the start, this French army had about 200,000 men organized into seven
corps Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was formally introduced March 1, 1800, when Napoleon ordered Gener ...
, each capable of independent action or in concert with other corps. Corps were large combined arms field units typically containing 2–4 infantry divisions, a cavalry division, and about 36 to 40
cannon A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during th ...
. On top of these forces, Napoleon created a
cavalry Historically, cavalry (from the French word ''cavalerie'', itself derived from ''cheval'' meaning "horse") are groups of soldiers or warriors who Horses in warfare, fight mounted on horseback. Until the 20th century, cavalry were the most mob ...
reserve of 22,000 organized into two
cuirassier A cuirassier ( ; ; ) was a cavalryman equipped with a cuirass, sword, and pistols. Cuirassiers first appeared in mid-to-late 16th century Europe as a result of armoured cavalry, such as man-at-arms, men-at-arms and demi-lancers discarding their ...
divisions Division may refer to: Mathematics *Division (mathematics), the inverse of multiplication * Division algorithm, a method for computing the result of mathematical division Military *Division (military), a formation typically consisting of 10,000 t ...
, four mounted
dragoon Dragoons were originally a class of mounted infantry, who used horses for mobility, but dismounted to fight on foot. From the early 17th century onward, dragoons were increasingly also employed as conventional cavalry and trained for combat wi ...
divisions, and two divisions of dismounted dragoons and light cavalry, all supported by 24
artillery Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...
pieces. By 1805, the had grown to a force of 350,000, was well equipped, adequately trained, and possessed a skilled officer class.


Russian and Austrian armies

The
Imperial Russian Army The Imperial Russian Army () was the army of the Russian Empire, active from 1721 until the Russian Revolution of 1917. It was organized into a standing army and a state militia. The standing army consisted of Regular army, regular troops and ...
in 1805 had many characteristics of
ancien régime ''Ancien'' may refer to * the French word for " ancient, old" ** Société des anciens textes français * the French for "former, senior" ** Virelai ancien ** Ancien Régime ** Ancien Régime in France {{disambig ...
military organization: there was no permanent formation above the regimental level, senior officers were largely recruited from aristocratic circles (including foreigners), and the Russian soldier, in line with 18th-century practice, was regularly beaten and punished to instill discipline. Furthermore, many lower-level officers were poorly trained and had difficulty getting their men to perform the sometimes complex manoeuvres required in a battle. Nevertheless, the Russians did have a fine artillery arm manned by soldiers who regularly fought hard to prevent their pieces from falling into enemy hands. Archduke Charles, brother of the Austrian Emperor, had started to reform the Austrian army in 1801 by taking away power from the Hofkriegsrat, the military-political council responsible for decision-making in the Austrian armed forces. Charles was Austria's best field commander, but he was unpopular with the imperial court and lost much influence when, against his advice, Austria decided to go to war with France. Karl Mack became the new main commander in Austria's army, instituting reforms on the infantry on the eve of war that called for a regiment to be composed of four
battalion A battalion is a military unit, typically consisting of up to one thousand soldiers. A battalion is commanded by a lieutenant colonel and subdivided into several Company (military unit), companies, each typically commanded by a Major (rank), ...
s of four
companies A company, abbreviated as co., is a legal entity representing an association of legal people, whether natural, juridical or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specifi ...
rather than the older three battalions of six companies. The sudden change came with no corresponding officer training, and as a result, these new units were not led as well as they could have been. Austrian cavalry forces were regarded as the best in Europe, but the detachment of many cavalry units to various infantry formations precluded the hitting power of their massed French counterparts.


Ulm campaign

In August 1805, Napoleon,
Emperor of the French Emperor of the French ( French: ''Empereur des Français'') was the title of the monarch and supreme ruler of the First French Empire and the Second French Empire. The emperor of France was an absolute monarch. Details After rising to power by ...
since May of the previous year, turned his army's sights from the
English Channel The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...
to the
Rhine The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...
in order to deal with the new Austrian and Russian threats. The War of the Third Coalition began with the Ulm Campaign, a series of French and Bavarian military manoeuvres and battles designed to outflank an Austrian army under General Mack.


Austrian plans and preparations

General Mack thought that Austrian security relied on sealing off the gaps through the mountainous
Black Forest The Black Forest ( ) is a large forested mountain range in the States of Germany, state of Baden-Württemberg in southwest Germany, bounded by the Rhine Valley to the west and south and close to the borders with France and Switzerland. It is th ...
area in Southern Germany that had witnessed much fighting during the campaigns of the French Revolutionary Wars. Mack believed that there would be no action in Central Germany. Mack decided to make the city of Ulm the centrepiece of his defensive strategy, which called for containment of the French until the Russians under
Mikhail Kutuzov Prince Mikhail Illarionovich Golenishchev-Kutuzov-Smolensky (; – ) was a Field Marshal of the Russian Empire. He served as a military officer and a diplomat under the reign of three Romanov monarchs: Empress Catherine II, and Emperors Paul ...
could arrive and alter the odds against Napoleon. Ulm was protected by the heavily fortified Michelsberg heights, giving Mack the impression that the city was virtually impregnable from outside attack. Fatally, the
Aulic Council The Aulic Council (; ; literally "Court Council of the Empire", sometimes abbreviated in academic writing as "RHR") was one of the two supreme courts of the Holy Roman Empire, the other being the ''Reichskammergericht'' (Imperial Chamber Court). ...
decided to make Northern Italy the main theatre of operations for the Austrian army. Archduke Charles was assigned 95,000 troops and directed to cross the
Adige The Adige is the second-longest river in Italy, after the Po. It rises near the Reschen Pass in the Vinschgau in the province of South Tyrol, near the Italian border with Austria and Switzerland, and flows through most of northeastern Italy ...
river with
Mantua Mantua ( ; ; Lombard language, Lombard and ) is a ''comune'' (municipality) in the Italian region of Lombardy, and capital of the Province of Mantua, eponymous province. In 2016, Mantua was designated as the "Italian Capital of Culture". In 2 ...
, Peschiera, and
Milan Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
as the initial objectives. Archduke John was given 23,000 troops and commanded to secure
Tyrol Tyrol ( ; historically the Tyrole; ; ) is a historical region in the Alps of Northern Italy and western Austria. The area was historically the core of the County of Tyrol, part of the Holy Roman Empire, Austrian Empire and Austria-Hungary, f ...
while serving as a link between his brother, Charles, and his cousin, Archduke
Ferdinand Ferdinand is a Germanic name composed of the elements "journey, travel", Proto-Germanic , abstract noun from root "to fare, travel" (PIE , "to lead, pass over"), and "courage" or "ready, prepared" related to Old High German "to risk, ventu ...
; the latter's force of 72,000, which was to invade Bavaria and hold the defensive line at Ulm, was effectively controlled by Mack.The Austrians also detached individual corps to serve with the Swedish in
Pomerania Pomerania ( ; ; ; ) is a historical region on the southern shore of the Baltic Sea in Central Europe, split between Poland and Germany. The central and eastern part belongs to the West Pomeranian Voivodeship, West Pomeranian, Pomeranian Voivod ...
and the British in
Naples Naples ( ; ; ) is the Regions of Italy, regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 908,082 within the city's administrative limits as of 2025, while its Metropolitan City of N ...
, though these were designed to obfuscate the French and divert their resources.


French plans and preparations

In both the campaigns of 1796 and 1800, Napoleon had envisaged the Danube theatre as the central focus of French efforts, but in both instances, the Italian theatre became the most important. The Aulic Council thought Napoleon would strike in Italy again. Napoleon had other intentions: 210,000 French troops would be launched eastwards from the camps of Boulogne and would envelop General Mack's exposed Austrian army if it kept marching towards the
Black Forest The Black Forest ( ) is a large forested mountain range in the States of Germany, state of Baden-Württemberg in southwest Germany, bounded by the Rhine Valley to the west and south and close to the borders with France and Switzerland. It is th ...
. Meanwhile, Marshal Murat would conduct cavalry screens across the Black Forest to fool the Austrians into thinking that the French were advancing on a direct west–east axis. The main attack in Germany would be supported by French assaults in other theatres: Marshal Masséna would confront Archduke Charles in Italy with 50,000 men, Marshal St. Cyr would march to Naples with 20,000 men, and Marshal Brune would patrol Boulogne with 30,000 troops against a possible British invasion. Marshal
Joachim Murat Joachim Murat ( , also ; ; ; 25 March 1767 – 13 October 1815) was a French Army officer and statesman who served during the French Revolutionary and Napoleonic Wars. Under the French Empire he received the military titles of Marshal of the ...
and General Bertrand conducted reconnaissance between the area bordering the Tyrol and the Main as General Savary, chief of the planning staff, drew up detailed road surveys of the areas between the Rhine and the Danube. The left-wing of the would move from
Hanover Hanover ( ; ; ) is the capital and largest city of the States of Germany, German state of Lower Saxony. Its population of 535,932 (2021) makes it the List of cities in Germany by population, 13th-largest city in Germany as well as the fourth-l ...
and
Utrecht Utrecht ( ; ; ) is the List of cities in the Netherlands by province, fourth-largest city of the Netherlands, as well as the capital and the most populous city of the Provinces of the Netherlands, province of Utrecht (province), Utrecht. The ...
to fall on Württemberg; the right and centre, troops from the Channel coast, would concentrate along the
Middle Rhine Middle Rhine (, ; kilometres 529 to 660 of the Rhine) is the section of the Rhine between Bingen and Bonn in Germany. It flows through the Rhine Gorge (), a formation created by erosion, which happened at about the same rate as an uplift i ...
around cities like
Mannheim Mannheim (; Palatine German language, Palatine German: or ), officially the University City of Mannheim (), is the List of cities in Baden-Württemberg by population, second-largest city in Baden-Württemberg after Stuttgart, the States of Ger ...
and
Strasbourg Strasbourg ( , ; ; ) is the Prefectures in France, prefecture and largest city of the Grand Est Regions of France, region of Geography of France, eastern France, in the historic region of Alsace. It is the prefecture of the Bas-Rhin Departmen ...
. While Murat was making demonstrations across the Black Forest, other French forces would then invade the German heartland and swing towards the southeast by capturing
Augsburg Augsburg ( , ; ; ) is a city in the Bavaria, Bavarian part of Swabia, Germany, around west of the Bavarian capital Munich. It is a College town, university town and the regional seat of the Swabia (administrative region), Swabia with a well ...
, a move that was supposed to isolate Mack and interrupt the Austrian lines of communication.


The French invasion

On 22 September, Mack decided to hold the Iller line anchored on Ulm. In the last three days of September, the French began the furious marches that would find them at the Austrian rear. Mack believed that the French would not violate Prussian territory, but when he heard that Bernadotte's I Corps had marched through Prussian
Ansbach Ansbach ( , ; ) is a city in the Germany, German state of Bavaria. It is the capital of the Regierungsbezirk, administrative region of Mittelfranken, Middle Franconia. Ansbach is southwest of Nuremberg and north of Munich, on the river Fränk ...
, he made the critical decision to stay and defend Ulm rather than retreat to the south, which would have offered a reasonable opportunity at saving the bulk of his forces. Napoleon had little accurate information about Mack's intentions or manoeuvres. He knew that Kienmayer's Corps was sent to
Ingolstadt Ingolstadt (; Austro-Bavarian language, Austro-Bavarian: ) is an Independent city#Germany, independent city on the Danube, in Upper Bavaria, with 142,308 inhabitants (as of 31 December 2023). Around half a million people live in the metropolitan ...
east of the French positions, but his agents greatly exaggerated its size. On 5 October, Napoleon ordered Marshal Ney to join Marshals Lannes,
Soult Marshal General of France, Marshal General Jean-de-Dieu Soult, 1st Duke of Dalmatia (; 29 March 1769 – 26 November 1851) was a French general and statesman. He was a Marshal of the Empire during the Napoleonic Wars, and served three times as P ...
, and Murat in concentrating and crossing the Danube at
Donauwörth Donauwörth (; ) is a town and the capital of the Donau-Ries district in Swabia, Bavaria, Germany. It is said to have been founded by two fishermen where the rivers Danube (Donau) and Wörnitz meet. The city is part of the scenic route called "R ...
. The French encirclement was not deep enough to prevent Kienmayer's escape: the French corps did not all arrive at the same place – they instead deployed on a long west–east axis – and the early arrival of Soult and Davout at Donauwörth incited Kienmayer to exercise caution and evasion.Napoleon gradually became more convinced that the Austrians were massed at Ulm and ordered sizeable portions of the French army to concentrate around Donauwörth; on 6 October, three French infantry and cavalry corps headed to Donauwörth to seal off Mack's escape route.


Battle of Wertingen

Realizing the danger of his position, Mack decided to go on the offensive. On 8 October, he commanded the army to concentrate around
Günzburg Günzburg (; Swabian German, Swabian: ''Genzburg'') is a town in Bavaria, Germany. It is a ''Große Kreisstadt'' and the capital of the Swabian Günzburg (district), district Günzburg. This district was constituted in 1972 by combining the city ...
and hoped to strike at Napoleon's lines of communication. Mack instructed Kienmayer to draw Napoleon further east towards
Munich Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is no ...
and Augsburg. Napoleon did not seriously consider the possibility that Mack would cross the Danube and move away from his central base, but he did realize that seizing the bridges at Günzburg would yield a large strategic advantage. To accomplish this objective, Napoleon sent Ney's Corps to Günzburg, completely unaware that the bulk of the Austrian army was heading to the same destination. On 8 October, however, the campaign witnessed its first serious battle at Wertingen between Auffenburg's troops and those of Murat and Lannes. For reasons not entirely clear, Mack ordered Auffenburg on 7 October to take his division of 5,000 infantry and 400 cavalry from Günzburg to Wertingen in preparation for the main Austrian advance out of Ulm. Uncertain of what to do and having little hope for reinforcements, Auffenburg was in a dangerous position. The first French forces to arrive were Murat's cavalry divisions – Klein's 1st Dragoons, Beaumont 3rd Dragoons, and Nansouty's
cuirassier A cuirassier ( ; ; ) was a cavalryman equipped with a cuirass, sword, and pistols. Cuirassiers first appeared in mid-to-late 16th century Europe as a result of armoured cavalry, such as man-at-arms, men-at-arms and demi-lancers discarding their ...
s. They began to assault the Austrian positions and were soon joined by Oudinot's grenadiers, who were hoping to outflank the Austrians from the north and west. Auffenburg attempted a retreat to the southwest, but he was not quick enough: the Austrians were decimated, losing nearly their entire force, 1,000 to 2,000 of which were prisoners. The Battle of Wertingen had been an easy French victory. The actions at Wertingen convinced Mack to operate on the left bank of the Danube instead of making a direct eastwards retreat on the right bank. This would require the Austrian army to cross at Günzburg. On 8 October, Ney was operating under Marshal Berthier's directions that called for a direct attack on Ulm the following day. Ney sent in Malher's 3rd Division to capture the Günzburg bridges over the Danube. A column of this division ran into some Tyrolean jägers and captured 200 of them, including their commander General d'Aspré, along with two cannons. The Austrians noticed these developments and reinforced their positions around Günzburg with three infantry battalions and 20 cannons. Malher's division conducted several heroic attacks against the Austrian positions, but all failed. Mack then sent in Ignác Gyulay with seven infantry battalions and fourteen cavalry squadrons to repair the destroyed bridges, but this force was charged and swept away by the delayed French 59th Infantry Regiment. Fierce fighting ensued and the French finally managed to establish a foothold on the right bank of the Danube. While the Battle of Günzburg was being fought, Ney sent General Loison's 2nd Division to capture the Danube bridges at Elchingen, which were lightly defended by the Austrians. Having lost most of the Danube bridges, Mack marched his army back to Ulm. By 10 October, Ney's corps had made significant progress: Malher's division had crossed to the right bank, Loison's division held Elchingen, and
Dupont Dupont, DuPont, Du Pont, duPont, or du Pont may refer to: People * Dupont (surname) Dupont, also spelled as DuPont, duPont, Du Pont, or du Pont is a French surname meaning "of the bridge", historically indicating that the holder of the surname re ...
's division was heading towards Ulm.


Haslach-Jungingen and Elchingen

The demoralized Austrian army arrived at Ulm in the early hours of 10 October. Mack was deliberating about a course of action to pursue and the Austrian army remained inactive at Ulm until the 11th. Meanwhile, Napoleon was operating under flawed assumptions: he believed the Austrians were moving to the east or southeast and that Ulm was lightly guarded. Ney sensed this misapprehension and wrote to Berthier that Ulm was, in fact, more heavily defended than the French originally thought. During this time, the Russian threat to the east began to preoccupy Napoleon so much that Murat was given command of the right wing of the army, consisting of Ney's and Lannes's corps. The French were separated in two massive rings at this point: the forces of Ney, Lannes and Murat to the west were containing Mack, while those of Soult, Davout, Bernadotte and Marmont to the east were charged with guarding against any possible Russian and Austrian incursions. On 11 October, Ney made a renewed push on Ulm; the 2nd and 3rd divisions were to march to the city along the right bank of the Danube while Dupont's division, supported by one dragoons division, was to march directly for Ulm and seize the entire city. The orders were hopeless because Ney still did not know that the entire Austrian army was stationed at Ulm. The 32nd Infantry Regiment in Dupont's division marched from Haslach towards Ulm and ran into four Austrian regiments holding Bolfingen. The 32nd carried out several ferocious attacks, but the Austrians held firm and repulsed every single one of them. The Austrians flooded the battle with more cavalry and infantry regiments to Jungingen hoping to score a knockout blow against Ney's corps by enveloping Dupont's force. Dupont sensed what was happening and preempted the Austrians by launching a surprise attack on Jungingen that captured at least 1,000 prisoners. Renewed Austrian attacks drove these forces back to Haslach, which the French managed to hold. Dupont was eventually forced to fall back on Albeck, where he joined d'Hilliers's troops. The effects of the Battle of Haslach-Jungingen on Napoleon's plans are not fully clear, but the Emperor may have finally ascertained that the majority of the Austrian army was concentrated at Ulm. Accordingly, Napoleon sent the corps of Soult and Marmont towards the Iller, meaning he now had four infantry and one cavalry corps to deal with Mack; Davout, Bernadotte, and the Bavarians were still guarding the region around Munich. Napoleon did not intend to fight a battle across rivers and ordered his marshals to capture the important bridges around Ulm. He also began shifting his forces to the north of Ulm because he expected a battle in that region rather than an encirclement of the city itself. These dispositions and actions would lead to a confrontation at Elchingen on the 14th as Ney's forces advanced on Albeck. At this point in the campaign, the Austrian command staff was in full confusion. Ferdinand began to openly oppose Mack's command style and decisions, charging that the latter spent his days writing contradictory orders that left the Austrian army marching back and forth. On 13 October, Mack sent two columns out of Ulm in preparation for a breakout to the north: one under General Johann Sigismund Riesch headed towards Elchingen to secure the bridge there and the other under Franz von Werneck went north with most of the heavy artillery. Ney hurried his corps forward to reestablish contact with Dupont. Ney led his troops to the south of Elchingen on the right bank of the Danube and began the attack. The field to the side was a partially wooded flood plain, rising steeply to the hill town of Elchingen, which had a wide field of view. The French cleared the Austrian pickets and a regiment boldly attacked and captured the
abbey An abbey is a type of monastery used by members of a religious order under the governance of an abbot or abbess. Abbeys provide a complex of buildings and land for religious activities, work, and housing of Christians, Christian monks and nun ...
at the top of the hill at bayonet point. The Austrian cavalry was also defeated and Riesch's infantry fled; Ney was given the title "Duke of Elchingen" for his impressive victory.


Battle of Ulm

Other actions took place on the 14th. Murat's forces joined Dupont at Albeck just in time to drive off an Austrian attack from Werneck; together Murat and Dupont beat the Austrians to the north in the direction of Heidenheim. By night on the 14th, two French corps were stationed in the vicinity of the Austrian encampments at Michelsberg, right outside of Ulm. Mack was now in a dangerous situation: there was no longer any hope of escaping along the north bank, Marmont and the
Imperial Guard An imperial guard or palace guard is a special group of troops (or a member thereof) of an empire, typically closely associated directly with the emperor and/or empress. Usually these troops embody a more elite status than other imperial force ...
were hovering at the outskirts of Ulm to the south of the river, and Soult was moving from
Memmingen Memmingen (; Swabian German, Swabian: ''Memmenge'') is a town in Swabia (Bavaria), Swabia, Bavaria, Germany. It is the economic, educational and administrative centre of the Danube-Iller region. To the west the town is flanked by the Iller, the ...
to prevent the Austrians escaping south to the Tyrol. Troubles continued with the Austrian command as Ferdinand overrode the objections of Mack and ordered the evacuation of all cavalry from Ulm, a total of 6,000 troopers. Murat's pursuit was so effective, however, that only eleven squadrons joined Werneck at Heidenheim. Murat continued his harassment of Werneck and forced him to surrender with 8,000 men at Trochtelfingten on 19 October; Murat also took an entire Austrian field park of 500 vehicles, then swept on towards Neustadt and captured 12,000 Austrians. Events at Ulm were now reaching a conclusion. On 15 October, Ney's troops successfully charged the Michelsberg encampments and on the 16th the French began to bombard Ulm itself. Austrian morale was at a low point and Mack began to realize that there was little hope of rescue. On 17 October, Napoleon's emissary, Ségur, signed a convention with Mack in which the Austrians agreed to surrender on 25 October if no aid came by that date. Gradually, however, Mack heard of the capitulations at Heidenheim and
Neresheim Neresheim is a town in the Ostalbkreis district, in Baden-Württemberg, Germany. It is situated northeast of Heidenheim an der Brenz, Heidenheim, and southeast of Aalen. It's the home of the Neresheim Abbey, which still hosts monks, was ''Reich ...
and agreed to surrender five days before schedule on 20 October. 10,000 troops from the Austrian garrison managed to escape, but the vast majority of the Austrian force marched out on the 21st and laid down their arms without incident, all with the drawn up in a vast semicircle observing the capitulation.


Battle of Trafalgar


Battle of Austerlitz


Preliminaries

The main body of the followed the remains of the Austrian army towards
Vienna Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. ...
. Following the failure of the Austrian army at Ulm, a
Russian Russian(s) may refer to: *Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *A citizen of Russia *Russian language, the most widely spoken of the Slavic languages *''The Russians'', a b ...
army under General Mikhail Kutuzov was also withdrawing east, and reached the Ill river on 22 October, where it joined with Kienmayer's retreating corps. On 5 November, they held a successful rearguard action in Amstetten. On 7 November, the Russians arrived in St. Pölten, and then moved across the Danube river the next day. Late on 9 November, they destroyed the bridges across the Danube, holding the last one, at Stein, near Krems, until the late afternoon. The following day, Marshal Mortier ordered General Gazan to attack what they believed to be a Russian rear guard, at the village of Stein. This was a trap on the part of Kutuzov, laid for the sole purpose of convincing Mortier that he had retreated further toward Vienna, when he had actually crossed the Danube in force, and lay concealed behind the ridges above the village. In the ensuing Battle of Dürenstein, three Russian columns circled around the First Division of the ''Corps Mortier'', and attacked Gazan from both the front and the rear. Not until Dupont's division arrived, after dark, was Gazan able to start to evacuate his soldiers to the other side of the Danube. Gazan lost close to 40 percent of his division. In addition, 47 officers and 895 men were captured, and he lost five guns, as well as the
eagles Eagle is the common name for the golden eagle, bald eagle, and other birds of prey in the family of the Accipitridae. Eagles belong to several groups of Genus, genera, some of which are closely related. True eagles comprise the genus ''Aquila ( ...
of the 4th Infantry Regiment, and the eagle and guidon of the 4th Dragoons. The Russians also lost around 4,000, about 16 percent of their force, and two regimental colors. The Austrian Lt. Field Marshal Johann Heinrich von Schmitt was killed as the battle concluded, probably by Russian musketry in the confused melee. At the Battle of Schöngrabern (also known as the Battle of Hollabrunn) occurred a week after the battle at Dürenstein. On 16 November 1805. near Hollabrunn in
Lower Austria Lower Austria ( , , abbreviated LA or NÖ) is one of the nine states of Austria, located in the northeastern corner of the country. Major cities are Amstetten, Lower Austria, Amstetten, Krems an der Donau, Wiener Neustadt and Sankt Pölten, which ...
. The Russian army of Kutuzov was retiring north of the
Danube The Danube ( ; see also #Names and etymology, other names) is the List of rivers of Europe#Longest rivers, second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest sou ...
before the French army of Napoleon. On 13 November 1805 Marshals
Murat Murat may refer to: Places Australia * Murat Bay, a bay in South Australia * Murat Marine Park, a marine protected area France * Murat, Allier, a commune in the department of Allier * Murat, Cantal, a commune in the department of Cantal Elsew ...
and Lannes, commanding the French advance guard, had captured a bridge over the Danube at Vienna by falsely claiming that an
armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from t ...
had been signed, and then rushing the bridge while the guards were distracted. Kutuzov needed to gain time in order to make contact near
Brünn Brno ( , ; ) is a Statutory city (Czech Republic), city in the South Moravian Region of the Czech Republic. Located at the confluence of the Svitava (river), Svitava and Svratka (river), Svratka rivers, Brno has about 403,000 inhabitants, making ...
with reinforcements led by Buxhowden. He ordered his rearguard under Major-General Prince Pyotr Bagration to delay the French. After Hollabrun, the armies gathered on the plains to the east of
Brünn Brno ( , ; ) is a Statutory city (Czech Republic), city in the South Moravian Region of the Czech Republic. Located at the confluence of the Svitava (river), Svitava and Svratka (river), Svratka rivers, Brno has about 403,000 inhabitants, making ...
. Napoleon could muster some 75,000 men and 157 guns for the impending battle, but about 7,000 troops under Davout were still far to the south in the direction of Vienna. The Allies had about 73,000 soldiers, seventy percent of them Russian, and 318 guns. On 1 December, both sides occupied their main positions.


Battlefield

The northern part of the battlefield was dominated by the Santon hill and the Zuran hill, both overlooking the vital Olmutz-Brno road that ran across a west–east axis. To the west of these two hills was the village of Bellowitz, and between them the Bosenitz Stream went south to link up with the Goldbach Stream, the latter flowing astride the villages of Kobelnitz, Sokolnitz, and Telnitz. The centerpiece of the entire area were the Pratzen Heights, a gently sloped hill about in height. An aide noted that the Emperor repeatedly told his Marshals, "Gentlemen, examine this ground carefully, it is going to be a battlefield; you will have a part to play upon it".


Allied plans and dispositions

An Allied council met on 1 December to discuss proposals for the battle. Most of the Allied strategists had two fundamental ideas in mind: making contact with the enemy and securing the southern flank that led to Vienna. Although the Tsar and his immediate entourage pushed hard for a battle, Emperor Francis of Austria was in a more cautious mood, and he was seconded by Kutuzov, the main Russian commander. The pressure to fight from the Russian nobles and the Austrian commanders, however, was too strong, and the Allies adopted Austrian Chief of Staff Franz von Weyrother's plan. This called for a main drive against the French right flank, which the Allies noticed was lightly guarded, and diversionary attacks against the French left. The Allies deployed most of their troops into four columns that would attack the French right. The
Russian Imperial Guard The Russian Imperial Guard, officially known as the Leib Guard ( ''Leyb-gvardiya'', from German ''Leib'' "body"; cf. Life Guards / Bodyguard), were combined Imperial Russian Army forces units serving as counterintelligence for preventing sabot ...
was held in reserve while Russian troops under Bagration guarded the Allied right.


French plans and dispositions

Days before any actual fighting, Napoleon had given an impression to the Allies that his army was in a weak state and that he desired a negotiated peace. In reality, he was hoping that they would attack, and to encourage them on this mission he deliberately weakened his right flank. On 28 November, Napoleon met with his marshals at Imperial Headquarters and they informed him of their qualms and fears about the upcoming battle, even suggesting a retreat, but he shrugged off their complaints and went to work. Napoleon's plan envisioned that the Allies would throw so many troops to envelop his right flank that their centre would be severely weakened. He then counted on a massive French thrust, to be conducted by 16,000 troops of
Soult Marshal General of France, Marshal General Jean-de-Dieu Soult, 1st Duke of Dalmatia (; 29 March 1769 – 26 November 1851) was a French general and statesman. He was a Marshal of the Empire during the Napoleonic Wars, and served three times as P ...
's IV Corps, through the centre to cripple the Allied army. Meanwhile, to support his weak right flank, Napoleon ordered Davout's III Corps to force march all the way from Vienna and join General Legrand's men, who held the extreme southern flank that would bear the heavy part of the Allied attack. Davout's soldiers had 48 hours to March . Their arrival would be extremely crucial in determining the success or failure of the French plan. The
Imperial Guard An imperial guard or palace guard is a special group of troops (or a member thereof) of an empire, typically closely associated directly with the emperor and/or empress. Usually these troops embody a more elite status than other imperial force ...
and Bernadotte's I Corps were held in reserve while the V Corps under Lannes guarded the northern sector of the battle.


Battle is joined

The battle began around 8 a.m. with the first allied column attacking the village of Telnitz, which was defended by the 3rd Line Regiment. This sector of the battlefield witnessed heavy action in the following moments as several ferocious Allied charges evicted the French from the town and forced them on the other side of the Goldbach. The first men of Davout's corps arrived at this time and threw the Allies out of Telnitz before they too were attacked by
hussar A hussar, ; ; ; ; . was a member of a class of light cavalry, originally from the Kingdom of Hungary during the 15th and 16th centuries. The title and distinctive dress of these horsemen were subsequently widely adopted by light cavalry ...
s and re-abandoned the town. Additional Allied attacks out of Telnitz were checked by French artillery. Allied columns started pouring against the French right, but not at the desired speed, so the French were mostly successful in curbing the attacks. In reality, the Allied deployments were mistaken and poorly timed: cavalry detachments under
Liechtenstein Liechtenstein (, ; ; ), officially the Principality of Liechtenstein ( ), is a Landlocked country#Doubly landlocked, doubly landlocked Swiss Standard German, German-speaking microstate in the Central European Alps, between Austria in the east ...
on the Allied left flank had to be placed in the right flank and in the process they ran into and slowed down part of the second column of infantry that was advancing towards the French right. At the time, the planners thought this was a disaster, but later on it helped the Allies. Meanwhile, the lead elements of the second column were attacking the village of Sokolnitz, which was defended by the 26th Light Regiment and the ''Tirailleurs'', French skirmishers. Initial Allied assaults proved unsuccessful and General
Langeron Langeron is a commune in the Nièvre department in central France. Demographics On 1 January 2019, the estimated population was 357. See also *Communes of the Nièvre department A commune is an alternative term for an intentional community ...
ordered the bombardment of the village. This deadly barrage forced the French out, and around the same time, the third column attacked the castle of Sokolnitz. The French, however, counterattacked and regained the village, only to be thrown out again. Conflict in this area ended momentarily when Friant's division (part of III Corps) retook the village. Sokolnitz was perhaps the most fought over area in the battlefield and would change hands several times as the day progressed.


"One sharp blow and the war is over"

Around 8:45 a.m., finally satisfied at the weakness in the enemy centre, Napoleon asked Soult how long it would take for his men to reach the Pratzen Heights, to which the Marshal replied, "Less than twenty minutes, sire." About 15 minutes later, Napoleon ordered the attack, adding, "One sharp blow and the war is over." A dense fog helped to cloud the advance of St. Hilaire's division, but as they went up the slope the legendary 'Sun of Austerlitz' ripped the mist apart and encouraged them forward.Russian soldiers and commanders on top of the heights were stunned to see so many French troops coming towards them. Allied commanders were now able to feed some of the delayed detachments of the fourth column into this bitter struggle. Over an hour of horrendous fighting left much of this unit decimated beyond recognition. The other men from the second column, mostly inexperienced Austrians, also participated in the struggle and swung the numbers game against one of the best fighting forces in the French army, finally forcing them to withdraw down the slopes. However, gripped by desperation, St. Hilaire's men struck hard once more and bayoneted the Allies out of the heights. To the north, General Vandamme's division attacked an area called Staré Vinohrady and through talented skirmishing and deadly volleys broke several Allied battalions. The battle had firmly turned to France's favor, but there was still much fighting ahead. Napoleon ordered Bernadotte's I Corps to support Vandamme's left and moved his own command centre from Zuran Hill to St. Anthony's Chapel on the Pratzen Heights. The difficult position of the Allies was confirmed by the decision to send in the
Russian Imperial Guard The Russian Imperial Guard, officially known as the Leib Guard ( ''Leyb-gvardiya'', from German ''Leib'' "body"; cf. Life Guards / Bodyguard), were combined Imperial Russian Army forces units serving as counterintelligence for preventing sabot ...
; Grand Duke Constantine, Tsar Alexander's brother, commanded the Guard and counterattacked in Vandamme's section of the field, forcing a bloody effort and the loss of the only French standard in the battle (the unfortunate victim was a battalion of the 4th Line Regiment). Sensing trouble, Napoleon ordered his own heavy Guard cavalry forward. These men pulverized their Russian counterparts, but with both sides pouring in large masses of cavalry no victor was clear yet. The Russians had a numerical advantage here but fairly soon the tide swung as d'Erlon's Division, the 2nd of Bernadotte's I Corps, deployed on the flank of the action and allowed French cavalry to seek refuge behind their lines. The
horse artillery Horse artillery was a type of light, fast-moving, and fast-firing field artillery that consisted of light cannons or howitzers attached to light but sturdy two-wheeled carriages called caissons or limbers, with the individual crewmen riding on h ...
of the Guard also unlimbered a deadly toll on the Russian cavalry and fusiliers. The Russians broke and many died as they were pursued by the reinvigorated French cavalry for about a quarter of a mile.


Endgame

Meanwhile, the northernmost part of the battlefield was also witnessing heavy fighting. Prince
Liechtenstein Liechtenstein (, ; ; ), officially the Principality of Liechtenstein ( ), is a Landlocked country#Doubly landlocked, doubly landlocked Swiss Standard German, German-speaking microstate in the Central European Alps, between Austria in the east ...
's heavy cavalry began to assault Kellerman's lighter cavalry forces after finally arriving at the correct position in the field. The fighting originally went well for the French, but Kellerman's forces took cover behind General Caffarelli's infantry division once it became clear Russian numbers were too great. Caffarelli's men halted the Russian assaults and permitted Murat to send two cuirassier divisions into the fray to finish off the Russian cavalry for good. The ensuing melee was bitter and long, but the French ultimately prevailed. Lannes then led his V Corps against Bagration's men and after hard fighting managed to drive the skilled Russian commander off the field. He wanted to pursue, but Murat, who was in control of this sector in the battlefield, was against the idea. Napoleon's focus now shifted towards the southern end of the battlefield where the French and the Allies were still fighting over Sokolnitz and Telnitz. In an effective double-pronged assault, St. Hilaire's division and part of Davout's III Corps smashed through the enemy at Sokolnitz and persuaded the commanders of the first two columns, generals Kienmayer and Langeron, to flee as fast as they could. Buxhowden, the commander of the Allied left and the man responsible for leading the attack, was completely drunk and fled as well. Kienmayer covered his withdrawal with the
O'Reilly O'Reilly () is a common Irish surname. The O'Reillys were historically the kings of East Bréifne in what is today County Cavan. The clan were part of the Connachta's Uí Briúin Bréifne kindred and were closely related to the Ó Ruairc ( ...
light cavalry, who gallantly managed to defeat five of six French cavalry regiments before they too had to retreat. General panic now seized the Allied army and it abandoned the field in any and all possible directions. Russian forces that had been defeated by the French right withdrew south towards Vienna via the Satschan frozen ponds. According to popular myth, the French artillery pounded towards the men, but Napoleon redirected his gunners to fire at the ice. The men drowned in the viciously cold ponds, dozens of artillery pieces going down along with them. Estimates on how many guns were captured differ; there may have been as few as 38 or as many as over 100. Sources also differ on casualties, with figures ranging from as few as 200 to as many as 2,000 dead. Because Napoleon exaggerated this incident in his report of the battle, the low numbers may be more accurate, although doubt remains as to whether they are fully correct. Many regard this incident as one of Napoleon's cruelest acts in war.However, only a few bodies are reported to have been found in the spring of 1806, and it is most likely the incident is a myth.


Italian Campaigns


Venetian front or Italian campaign of 1805

Meanwhile, in Italy, the Austrian ''Armee von Italien'' under Archduke Charles fought against the French '' Armée d'italie'' under Marshal Masséna. The French managed to gain a bridgehead over the
Adige The Adige is the second-longest river in Italy, after the Po. It rises near the Reschen Pass in the Vinschgau in the province of South Tyrol, near the Italian border with Austria and Switzerland, and flows through most of northeastern Italy ...
river at
Verona Verona ( ; ; or ) is a city on the Adige, River Adige in Veneto, Italy, with 255,131 inhabitants. It is one of the seven provincial capitals of the region, and is the largest city Comune, municipality in the region and in Northeast Italy, nor ...
on 18 October, and finally, between 29 and 31 October, the outnumbered French defeated the superior Austrian army in the Battle of Caldiero. In November the Austrians retreated, engaging the French vanguard of d'Espagne in several rear-guard actions.
Venice Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
was blockaded by French and
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance languag ...
troops under St.Cyr. Charles' army finally crossed the Isonzo on 14 November, preventing the French from crossing it. One 4,400-strong Habsburg army that lingered behind, was roundly defeated and captured by Jean Reynier and St. Cyr at the Battle of Castelfranco Veneto on 24 November 1805.


Anglo-Russian occupation of Naples

The French force under St. Cyr then manoeuvred on the frontier of the
Kingdom of Naples The Kingdom of Naples (; ; ), officially the Kingdom of Sicily, was a state that ruled the part of the Italian Peninsula south of the Papal States between 1282 and 1816. It was established by the War of the Sicilian Vespers (1282–1302). Until ...
. The French were being carefully watched by an Anglo-Russian force entrusted with defence of the kingdom. After the Battle of Austerlitz, the Russians withdrew from Italy and the British, unwilling to defend Naples alone, evacuated the mainland altogether and retreated back to
Sicily Sicily (Italian language, Italian and ), officially the Sicilian Region (), is an island in the central Mediterranean Sea, south of the Italian Peninsula in continental Europe and is one of the 20 regions of Italy, regions of Italy. With 4. ...
. Meanwhile, the French force, now stationed in
Bologna Bologna ( , , ; ; ) is the capital and largest city of the Emilia-Romagna region in northern Italy. It is the List of cities in Italy, seventh most populous city in Italy, with about 400,000 inhabitants and 150 different nationalities. Its M ...
, was reorganised into the Army of Naples and placed under the nominal command of Napoleon's brother
Joseph Bonaparte Joseph Bonaparte (born Giuseppe di Buonaparte, ; ; ; 7 January 176828 July 1844) was a French statesman, lawyer, diplomat and older brother of Napoleon Bonaparte. During the Napoleonic Wars, the latter made him King of Naples (1806–1808), an ...
. However, the de facto commander was André Masséna, who commanded the I Corps and was entrusted with the invasion by Joseph.


French invasion of Naples

On 9 February 1806, Masséna invaded the Kingdom of Naples and two days later, the Bourbon King of Naples, Ferdinand IV also fled to Sicily, protected by the British fleet. Naples soon fell into French hands and by the end of February, only two places in the kingdom still held out. One was the fortress city of
Gaeta Gaeta (; ; Southern Latian dialect, Southern Laziale: ''Gaieta'') is a seaside resort in the province of Latina in Lazio, Italy. Set on a promontory stretching towards the Gulf of Gaeta, it is from Rome and from Naples. The city has played ...
, north of Naples, and the other was
Calabria Calabria is a Regions of Italy, region in Southern Italy. It is a peninsula bordered by the region Basilicata to the north, the Ionian Sea to the east, the Strait of Messina to the southwest, which separates it from Sicily, and the Tyrrhenian S ...
in the very south of Italy, which was where the remainder of the Royal Neapolitan Army was stationed. Ferdinand had hoped for a repeat of the events of 1799, when a popular uprising in Calabria eventually caused the downfall of the Parthenopaean Republic, a French client state created after the Neapolitans were defeated the first time during the
War of the Second Coalition The War of the Second Coalition () (1798/9 – 1801/2, depending on periodisation) was the second war targeting French Revolution, revolutionary French First Republic, France by many European monarchies, led by Kingdom of Great Britain, Britai ...
. However, no such rebellion initially occurred and on 3 March, General Jean Reynier, who commanded the 10,000 strong II Corps of the Army of Naples invaded Calabria. Only a few Calabrians resisted the invading French force and the Royal Neapolitan Army was soundly defeated at the Battle of Campo Tenese on 10 March 1806. Ferdinand now had no choice but to concede the Neapolitan throne to the French. A day after Campo Tenese, Joseph was installed as the new King of Naples. By now, the last regular troops of the Neapolitan army had fled to Sicily and the French controlled the entire Italian mainland except for the fortress of Gaeta, which had been
under siege ''Under Siege'' is a 1992 action thriller film directed by Andrew Davis and written by J. F. Lawton. It stars Steven Seagal (who also produced the film), Tommy Lee Jones, Gary Busey, and Erika Eleniak. Seagal plays Casey Ryback, a former ...
since 26 February. Gaeta surrendered on 18 July, concluding the invasion with a decisive French victory.


Calabrian insurrection

However, all was not going to plan for the French. Supply problems meant that Reynier's II Corps in Calabria was forced to live off the land. For over a month, the peasants of the region had supported the Neapolitan army and were close to starvation. Joseph seemed unaware of the problems and the potential dangers of revolt. Consequently, no extra provisions were sent to the south of Italy. Reynier took the initiative and seized supplies from the local populace, leading predictably to a revolt by the end of March. What started as small bands of partisans eventually expanded into entire villages rising up against the French. With the fortress of Gaeta still holding out, Joseph was unable to send more troops to Calabria, forcing Reynier to reinforce his army with native troops recruited from the larger towns and cities. By July, Masséna had still failed to take Gaeta due to poor logistical management of the French artillery, slight reinforcements from the British by sea and a series of successful sorties by the Neapolitan garrison against the French sappers. With only Reynier's small force in Calabria still struggling against the revolt, the British organised an expeditionary force under Sir John Stuart to prevent any potential invasion of Sicily and perhaps to trigger a full-scale rebellion against the French across Italy. Although there were early successes for the British, in particular at Maida, the British failed to either reinforce Stuart's expedition or attempt to relieve the Siege of Gaeta. With the French artillery finally able to bombard the walls with their full potential, the Neapolitans eventually surrendered on 18 July, freeing Masséna's I Corps. Following the surrender, Masséna was ordered south by Joseph to support Reynier's II Corps against the British and the Calabrian insurrection. Now severely outnumbered in mainland Italy, the British retreated back to Sicily. However, the revolt was not suppressed until 1807, by which time Masséna had already requested permission to relinquish command. For the first time in the Napoleonic Wars, the French experienced a brutal guerrilla war carried on by a rebellious population. The French gleaned that the only effective way to deal with such an uprising was to implement terror tactics employed by Reynier. This foreshadowed the same problems the French, and in particular Joseph Bonaparte, would face in Spain during the
Peninsular War The Peninsular War (1808–1814) was fought in the Iberian Peninsula by Kingdom of Portugal, Portugal, Spain and the United Kingdom of Great Britain and Ireland, United Kingdom against the invading and occupying forces of the First French ...
.


Results

Austerlitz and the preceding campaign profoundly altered the nature of European politics. In three months, the French had occupied Vienna, decimated two armies, and humbled the Austrian Empire. These events sharply contrast with the rigid power structures of the 18th century, when no major European capital was ever held by an enemy army. Austerlitz set the stage for a near-decade of French domination on the European continent, but one of its more immediate impacts was to goad Prussia into war in 1806. France and Austria signed a truce on 4 December and the Treaty of Pressburg 22 days later took the latter out of the war. Austria agreed to recognize French territory captured by the treaties of Campo Formio (1797) and Lunéville (1801), cede land to Bavaria,
Württemberg Württemberg ( ; ) is a historical German territory roughly corresponding to the cultural and linguistic region of Swabia. The main town of the region is Stuttgart. Together with Baden and Province of Hohenzollern, Hohenzollern, two other histo ...
, and
Baden Baden (; ) is a historical territory in southern Germany. In earlier times it was considered to be on both sides of the Upper Rhine, but since the Napoleonic Wars, it has been considered only East of the Rhine. History The margraves of Ba ...
, which were Napoleon's German allies, and pay 40 million francs in war indemnities. Venetia was also given to the
Kingdom of Italy The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
. It was a harsh end for Austria, but certainly not a catastrophic peace. The Russian army was allowed to withdraw to home territory and the French encamped themselves in Southern Germany. In July 1806, Napoleon created the
Confederation of the Rhine The Confederated States of the Rhine, simply known as the Confederation of the Rhine or Rhine Confederation, was a confederation of German client states established at the behest of Napoleon some months after he defeated Austrian Empire, Austria ...
, a string of German client states which on becoming allies of France pledged themselves to raise an army of 63,000 men. With Napoleon as their "Protector", the confederate states were compelled to leave the
Holy Roman Empire The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...
, which was dissolved shortly afterward. Prussia saw these and other moves as an affront to its status as the main power of Central Europe and it went to war with France in 1806. In Italy, the political situation would remain unchanged until 1815, with the British and Sicilian troops guarding the Bourbon King Ferdinand in Sicily and the Napoleonic King of Naples controlling the mainland. In 1808,
Joachim Murat Joachim Murat ( , also ; ; ; 25 March 1767 – 13 October 1815) was a French Army officer and statesman who served during the French Revolutionary and Napoleonic Wars. Under the French Empire he received the military titles of Marshal of the ...
became the King of Naples, after Joseph Bonaparte became King of Spain. Murat made various attempts to cross the
Strait of Messina The Strait of Messina (; ) is a narrow strait between the eastern tip of Sicily (Punta del Faro) and the western tip of Calabria (Punta Pezzo) in Southern Italy. It connects the Tyrrhenian Sea to the north with the Ionian Sea to the south, with ...
, which all ended in failure, despite once managing to secure a foothold in Sicily.


Casualties and losses

The French lost 12,000 killed, 22,200 wounded and 5,000 captured in 1805, including 5,300 killed and 22,200 wounded in the Austrian Campaign against the Habsburgs and Russians, 2,100 killed and 5,300 wounded in the Italian Campaign, 4,300 killed and 3,700 wounded in the naval war, 200 killed and 400 wounded in the colonies and 100 killed and 400 wounded in coastal defense duties. The 1806 Naples Campaign cost the French 1,500 killed and 5,000 wounded. The Spanish suffered 1,200 killed and 1,600 wounded in the naval war, Bavaria sustained 300 killed and 1,200 wounded in the Austrian Campaign and the Kingdom of Italy lost 100 killed and 400 wounded in the Italian Campaign and 250 killed and 1,500 wounded in the Naples Campaign. The Austrians lost 20,000 killed and wounded and 70,000 as prisoners. Russian casualties were 25,000 killed and wounded and 25,000 captured. The Neapolitan army of 22,000 was wiped out by the French in 1806, with only 2,000 evacuated to Sicily.


See also

*
War of the Fourth Coalition The War of the Fourth Coalition () was a war spanning 1806–1807 that saw a multinational coalition fight against Napoleon's First French Empire, French Empire, subsequently being defeated. The main coalition partners were Kingdom of Prussia, ...
* List of battles of the War of the Third Coalition * List of Napoleonic battles


Notes


Citations


References

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External links

* {{DEFAULTSORT:Third Coalition 19th-century conflicts Coalition, 3rd Conflicts in 1803 Conflicts in 1804 Conflicts in 1805 Conflicts in 1806 Napoleon's planned invasion of the United Kingdom 1805 in Europe Wars involving France Wars involving the Austrian Empire Wars involving the United Kingdom Wars involving the Russian Empire Wars involving Spain Wars involving Sweden Wars involving Bavaria Wars involving the Kingdom of Naples Wars involving the Holy Roman Empire Wars involving the Kingdom of Sicily Wars involving Württemberg