The Military history of Denmark is centered around an involvement in wars in

Northern Europe The northern region of Europe has several definitions. A restrictive definition may describe Northern Europe as being roughly north of the southern coast of the Baltic Sea, which is about 54th parallel north, 54°N, or may be based on other g ...

since 793 and, recently, elsewhere. In the early

Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...

, Danish

Vikings Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and se ...

invaded and conquered parts of the

British Isles The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles, ...

and

Normandy Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...

. Later in the Middle Ages, Denmark was repeatedly in combat with

Scandinavia Scandinavia; Sámi languages: /. ( ) is a subregion#Europe, subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, ...

n neighbours and in the

Baltic Baltic may refer to: Peoples and languages * Baltic languages, a subfamily of Indo-European languages, including Lithuanian, Latvian and extinct Old Prussian *Balts (or Baltic peoples), ethnic groups speaking the Baltic languages and/or originati ...

area. The "Union Wars" of the 15th and early 16th centuries took place between Denmark and

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...

, then united in the

Kalmar Union The Kalmar Union (Danish language, Danish, Norwegian language, Norwegian, and sv, Kalmarunionen; fi, Kalmarin unioni; la, Unio Calmariensis) was a personal union in Scandinavia, agreed at Kalmar in Sweden, that from 1397 to 1523 joined under ...

. After Sweden broke away, Denmarkuntil 1814 remaining united with

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

again confronted Sweden in the

Northern Seven Years' War The Northern Seven Years' War (also known as the ''Nordic Seven Years' War'', the ''First Northern War'' or the ''Seven Years War in Scandinavia'') was fought between the Kingdom of Sweden and a coalition of Denmark–Norway, Lübeck, and Polan ...

(1563–70) and the

Kalmar War The Kalmar War (1611–1613) was a war between Denmark–Norway and Sweden. Though Denmark-Norway soon gained the upper hand, it was unable to defeat Sweden entirely. The Kalmar War was the last time Denmark-Norway successfully defended its ''dom ...

(1611–13). Denmark was heavily involved in the

Thirty Years' War The Thirty Years' War was one of the longest and most destructive conflicts in European history The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (80 ...

(1618–1648) on the side of the

Protestants Protestantism is a branch of Christianity that follows the theological tenets of the Protestant Reformation, a movement that began seeking to reform the Catholic Church from within in the 16th century against what its followers perceived to b ...

of the

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

lands. During the 16th to 18th centuries, Danish military involvement was also directed against

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

and other

Eastern Europe Eastern Europe is a subregion of the Europe, European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural, and socio-economic connotations. The vast majority of the region is covered by Russ ...

an nations in the series of

Northern Wars "Northern Wars" is a term used for a series of wars fought in northern and northeastern Europe from the 16th to the 18th century. An internationally agreed-on nomenclature for these wars has not yet been devised. While the Great Northern War is gen ...

and subsequent campaigns. Denmark was brought into the

Napoleonic Wars The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fren ...

on the French side when attacked by Britain at the Battles of Copenhagen in 1801 and

1807 Events January–March * January 7 – The United Kingdom of Great Britain and Ireland issues an Order in Council prohibiting British ships from trading with France or its allies. * January 20 – The Sierra Leone Company, faced with b ...

. The eventual defeat of Napoleon led to the break-up of the Denmark-Norway union. The next major combats were over control of

Schleswig The Duchy of Schleswig ( da, Hertugdømmet Slesvig; german: Herzogtum Schleswig; nds, Hartogdom Sleswig; frr, Härtochduum Slaswik) was a duchy in Southern Jutland () covering the area between about 60 km (35 miles) north and 70 km ...

, in the

First First or 1st is the ordinal form of the number one (#1). First or 1st may also refer to: *World record, specifically the first instance of a particular achievement Arts and media Music * 1$T, American rapper, singer-songwriter, DJ, and rec ...

and

Second Schleswig War The Second Schleswig War ( da, Krigen i 1864; german: Deutsch-Dänischer Krieg) also sometimes known as the Dano-Prussian War or Prusso-Danish War was the second military conflict over the Schleswig-Holstein Question of the nineteenth century. T ...

s. The result hereof being that Denmark lost Schleswig, of which the northern part returned in 1920. Denmark remained neutral in

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, but in

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

the country was

occupied ' (Norwegian: ') is a Norwegian political thriller TV series that premiered on TV2 on 5 October 2015. Based on an original idea by Jo Nesbø, the series is co-created with Karianne Lund and Erik Skjoldbjærg. Season 2 premiered on 10 October ...

, with little fighting, by

Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...

in 1940. As a member of the

United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and international security, security, develop friendly relations among nations, achieve international cooperation, and be ...

and

NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...

, Denmark has participated in military operations since 1992: in

Bosnia Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and He ...

Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...

Iraq Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...

and

Libya Libya (; ar, ليبيا, Lībiyā), officially the State of Libya ( ar, دولة ليبيا, Dawlat Lībiyā), is a country in the Maghreb region in North Africa. It is bordered by the Mediterranean Sea to the north, Egypt to Egypt–Libya bo ...

The Viking Age (793–1050)

*793 –

raid

Lindisfarne Lindisfarne, also called Holy Island, is a tidal island off the northeast coast of England, which constitutes the civil parish of Holy Island in Northumberland. Holy Island has a recorded history from the 6th century AD; it was an important ...

monastery on Holy Island in the

North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...

. This is considered the start of the Viking Raids *810 –

Frisia Frisia is a cross-border cultural region in Northwestern Europe. Stretching along the Wadden Sea, it encompasses the north of the Netherlands and parts of northwestern Germany. The region is traditionally inhabited by the Frisians, a West Ger ...

is attacked by Danish Vikings *855 – Danish Viking army besieges

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

, though never capturing the city *866 – Large Danish Viking army arrives in

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

*876 –

King Alfred Alfred the Great (alt. Ælfred 848/849 – 26 October 899) was King of the West Saxons from 871 to 886, and King of the Anglo-Saxons from 886 until his death in 899. He was the youngest son of King Æthelwulf and his first wife Osburh, who bot ...

cedes East and North England to the Danes thus establishing the

Danelaw The Danelaw (, also known as the Danelagh; ang, Dena lagu; da, Danelagen) was the part of England in which the laws of the Danes held sway and dominated those of the Anglo-Saxons. The Danelaw contrasts with the West Saxon law and the Mercian ...

*911 – Emperor of

Western Francia In medieval history, West Francia (Medieval Latin: ) or the Kingdom of the West Franks () refers to the western part of the Frankish Empire established by Charlemagne. It represents the earliest stage of the Kingdom of France, lasting from about ...

Charles the Simple Charles III (17 September 879 – 7 October 929), called the Simple or the Straightforward (from the Latin ''Carolus Simplex''), was the king of West Francia from 898 until 922 and the king of Lotharingia from 911 until 919–923. He was a memb ...

surrenders what will later be known as

to Viking chief

Rollo Rollo ( nrf, Rou, ''Rolloun''; non, Hrólfr; french: Rollon; died between 928 and 933) was a Viking who became the first ruler of Normandy, today a region in northern France. He emerged as the outstanding warrior among the Norsemen who had se ...

. *920 – The

is reconquered by England *982 –

London London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...

is sacked by Vikings *1013 – " Svend Tveskæg" attacks England and is recognised as the new

King of England The monarchy of the United Kingdom, commonly referred to as the British monarchy, is the constitutional form of government by which a hereditary sovereign reigns as the head of state of the United Kingdom, the Crown Dependencies (the Bailiw ...

*1014 - The

Battle of Clontarf The Battle of Clontarf ( ga, Cath Chluain Tarbh) took place on 23 April 1014 at Clontarf, near Dublin, on the east coast of Ireland. It pitted an army led by Brian Boru, High King of Ireland, against a Norse-Irish alliance comprising the forc ...

is fought in the region of

Howth Howth ( ; ; non, Hǫfuð) is an affluent peninsular village and outer suburb of Dublin, Ireland. The district as a whole occupies the greater part of the peninsula of Howth Head, which forms the northern boundary of Dublin Bay, and includes ...

, near

Dublin Dublin (; , or ) is the capital and largest city of Republic of Ireland, Ireland. On a bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, bordered on the south by the Dublin Mountains, a part of th ...

between the Irish and Viking forces of

Brian Boruma Brian Boru ( mga, Brian Bóruma mac Cennétig; modern ga, Brian Bóramha; 23 April 1014) was an Irish king who ended the domination of the High Kingship of Ireland by the Uí Néill and probably ended Viking invasion/domination of Ireland. Bri ...

and his Viking and Irish opponents. The battle results in an Irish victory on the side of king Brian. *1016 – Viking army meets an English army at

Ashdon Ashdon, is a village and civil parish in Essex, England. It is about northeast of Saffron Walden and northwest from the county town of Chelmsford. The village is in the district of Uttlesford and the parliamentary constituency of Saffron Walde ...

. The battle ends in an English defeat

Early period

*1043 –

Magnus I of Norway Magnus Olafsson (Old Norse: ''Magnús Óláfsson''; Norwegian and Danish: ''Magnus Olavsson''; – 25 October 1047), better known as Magnus the Good (Old Norse: ''Magnús góði'', Norwegian and Danish: ''Magnus den gode''), was King of Norway ...

defeats the

Wends Wends ( ang, Winedas ; non, Vindar; german: Wenden , ; da, vendere; sv, vender; pl, Wendowie, cz, Wendové) is a historical name for Slavs living near Germanic settlement areas. It refers not to a homogeneous people, but to various peopl ...

at Lyrskov Hede *1069 –

Sweyn II of Denmark Sweyn Estridsson Ulfsson ( on, Sveinn Ástríðarson, da, Svend Estridsen; – 28 April 1076) was King of Denmark (being Sweyn II) from 1047 until his death in 1076. He was the son of Ulf Thorgilsson and Estrid Svendsdatter, and the grandson ...

sponsored a successful Danish attack on England in 1069, aiding Anglo-Saxon rebels against

William the Conqueror William I; ang, WillelmI (Bates ''William the Conqueror'' p. 33– 9 September 1087), usually known as William the Conqueror and sometimes William the Bastard, was the first House of Normandy, Norman List of English monarchs#House of Norman ...

*1157 – 23 October Valdemar I defeats Sven on Grate Hede ending the Danish Civil War *1184 – 21 May A Danish fleet of 125 ships under Absalon defeats a Vendish fleet *1191 – Danish crusade to

Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...

*1202 – Danish crusade to

led by the

Archbishop of Lund List of (arch)bishops of Lund. Until the Danish Reformation the centre of a great Latin (arch)bishopric, Lund has been in Sweden since the Treaty of Roskilde in 1658. The Diocese of Lund is now one of thirteen in the Church of Sweden. Cathol ...

Anders Sunesen Anders Sunesen (also ''Andreas'', ''Suneson'', ''Sunesøn'', Latin: ''Andreas Sunonis'') (c. 1167 – 1228) was a Danish archbishop of Lund, Scania, from 21 March 1201, at the death of Absalon, to his own death in 1228. He is the author ...

and his brother *1219 – 15 June In the Battle of Lindanise in

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, a ...

(what would later be

Livonia Livonia ( liv, Līvõmō, et, Liivimaa, fi, Liivinmaa, German and Scandinavian languages: ', archaic German: ''Liefland'', nl, Lijfland, Latvian and lt, Livonija, pl, Inflanty, archaic English: ''Livland'', ''Liwlandia''; russian: Ли ...

), the Danish flag falls down from the sky, at least according to legend (see

Dannebrog Dannebrog (until the mid-20th century often spelled Danebrog) may refer to: Flags and orders * The national Flag of Denmark * Order of the Dannebrog ( da, Dannebrogordenen, links=no), a Royal Danish decoration Places * Dannebrog Island, an i ...

) *1362 –

Valdemar Atterdag Valdemar IV Atterdag (the epithet meaning "Return of the Day"), or Waldemar (132024 October 1375) was King of Denmark from 1340 to 1375. He is mostly known for his reunion of Denmark after the bankruptcy and mortgaging of the country to finance ...

defeats a Hanseatic fleet (see

Hanseatic League The Hanseatic League (; gml, Hanse, , ; german: label=Modern German, Deutsche Hanse) was a medieval commercial and defensive confederation of merchant guilds and market towns in Central and Northern Europe. Growing from a few North German to ...

) that was besieging

Helsingborg Helsingborg (, , , ) is a city and the seat of Helsingborg Municipality, Scania (Skåne), Sweden. It is the second-largest city in Scania (after Malmö) and ninth-largest in Sweden, with a population of 113,816 (2020). Helsingborg is the cent ...

, and forces

Lübeck Lübeck (; Low German also ), officially the Hanseatic City of Lübeck (german: Hansestadt Lübeck), is a city in Northern Germany. With around 217,000 inhabitants, Lübeck is the second-largest city on the German Baltic coast and in the stat ...

to conclude peace

Union Wars (1434–1523)

*1434 – A

Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...

peasant rebellion breaks out against the Danes *1448 – Disagreements over who should be the new King after Christoffer the Third's death, leads to war between Denmark and

*1455 – After 7 years of war Danish King Christian the First is recognised as King over the Union *1463 – Another outbreak of rebellion against the Danes in Sweden Brunkeberg's battle

*1471 – In the

Battle of Brunkeberg The Battle of Brunkeberg was fought on 10 October 1471 between the Swedish regent Sten Sture the Elder and forces led by Danish king Christian I. Sture won a decisive victory. Background In May 1471, Sten Sture the Elder had been elected as Lor ...

, the Danes suffer complete defeat at the hands of the Swedish *1472 – Peace is concluded *1497 – 29 September

King Hans John (Danish language, Danish, Norwegian language, Norwegian and sv, Hans; né ''Johannes'') (2 February 1455 – 20 February 1513) was a Scandinavian monarch under the Kalmar Union. He was king of Kingdom of Denmark, Denmark (1481–1513 ...

attempts to grab power in Sweden after internal disturbances. His army of

mercenaries A mercenary, sometimes also known as a soldier of fortune or hired gun, is a private individual, particularly a soldier, that joins a military conflict for personal profit, is otherwise an outsider to the conflict, and is not a member of any o ...

defeats a Swedish army in the

Battle of Rotebro The Battle of Rotebro was fought on 28 September 1497 between the armies of John, King of Denmark and Sten Sture the Elder, the deposed regent of Sweden. Sten Sture had fallen out of favor with the nobility and was deposed on March 1497 of his ...

and he is recognised as King of Sweden *1500 – 17 February King Hans is defeated in the battle of

Dithmarschen Dithmarschen (, Northern Low Saxon, Low Saxon: ; archaic English: ''Ditmarsh''; da, Ditmarsken; la, label=Medieval Latin, Tedmarsgo) is a district in Schleswig-Holstein, Germany. It is bounded by (from the north and clockwise) the districts of ...

*1501 – A Swedish rebellion breaks out and King Hans loses most of Sweden *1501 – The Swedes attack Norway but are forced back.

Stockholm Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, largest city of Sweden as well as the List of urban areas in the Nordic countries, largest urban area in Scandinavia. Approximately 980,000 people liv ...

surrenders to the Swedes *1510 – Lübeck declares war on Denmark and Sweden joins Lübeck *1511 – 9 August A Danish fleet forces the Lübeck fleet to fall back at

Bornholm Bornholm () is a Danish island in the Baltic Sea, to the east of the rest of Denmark, south of Sweden, northeast of Germany and north of Poland. Strategically located, Bornholm has been fought over for centuries. It has usually been ruled by ...

, and the rest of the war they remain in port *1512 – April Denmark concludes peace with Sweden and Lübeck *1517 – A rebellion in Sweden flares up again. In August a Danish army is deployed at Stockholm, but is defeated at Vedla *1518 – Another Danish army is deployed at Stockholm, but is not capable of forcing a decisive battle *1520 – 6 April A Danish army defeats a Swedish peasant army at

Uppsala Uppsala (, or all ending in , ; archaically spelled ''Upsala'') is the county seat of Uppsala County and the List of urban areas in Sweden by population, fourth-largest city in Sweden, after Stockholm, Gothenburg, and Malmö. It had 177,074 inha ...

and occupies Stockholm *1520 – 8 November The Swedish army is defeated. King Christian the Second acquires the title of King of Sweden, and orders all the Swedish nobility executed. This day is known as the bloodbath in Stockholm *1521 – Swedish

Gustav Vasa Gustav I, born Gustav Eriksson of the Vasa noble family and later known as Gustav Vasa (12 May 1496 – 29 September 1560), was King of Sweden from 1523 until his death in 1560, previously self-recognised Protector of the Realm ('' Riksföre ...

reconquers all of Sweden and the Union is dissolved. Gustav is declared King of Sweden

War with Lübeck and "The Counts Feud" (1534–1537)

*1534 – A Civil War named the

Count's Feud The Count's Feud ( da, Grevens Fejde), also called the Count's War, was a war of succession that raged in Denmark in 1534–36 and brought about the Reformation in Denmark. In the international context, it was part of the European wars of religi ...

breaks out. Captain Clement raises a Juttish peasant army *1535 – 9 June A Danish and Swedish fleet fights a naval battle against Lübeck. The battle ends in a draw but in the coming days the Lübeck fleet is destroyed *1536 – 11 June In the Danish Civil War a Danish peasant army is massacred in the battle of Oxnebjerg *1537 – 16 January Lübeck concludes peace with Christian the Third. The Civil War ends when

Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...

surrenders to Christian the Third

War against The Netherlands (1542–1543)

*1542 – War breaks out between France and the German Emperor. Emperor

Charles V Charles V may refer to: * Charles V, Holy Roman Emperor (1500–1558) * Charles V of Naples (1661–1700), better known as Charles II of Spain * Charles V of France (1338–1380), called the Wise * Charles V, Duke of Lorraine (1643–1690) * Infan ...

supports

Frederick II, Elector Palatine Frederick II, Count Palatine of the Rhine (9 December 1482 – 26 February 1556), also Frederick the Wise, a member of the Wittelsbach dynasty, was Prince-elector of the Palatinate from 1544 to 1556. The Kurfürst-Friedrich-Gymnasium in Heidelb ...

for the Danish crown, and Denmark participates in the war on the side of France *1543 – Denmark declares war on Netherlands, that are under the rule of Charles *1544 – Denmark concludes the Treaty of Speyer with the German Emperor

Seven Years' War (1563–1570)

*1563 – 31 July Ambition and a fight over the right to each other's national weapons, war breaks out between Denmark and Sweden *1563 – 15 September A Danish army moves into Sweden and occupies Älvsborg *1564 – 30 May A Danish fleet under the command of

Herluf Trolle Herluf Trolle (14 January 1516 – 25 June 1565) was a Danish naval hero, Admiral of the Fleet and co-founder of Herlufsholm School (''Herlufsholm Skole og Gods''), a private boarding school at Næstved on the island of Zealand in Denmark. ...

, defeats a Swedish fleet between

Öland Öland (, ; ; sometimes written ''Øland'' in other Scandinavian languages, and often ''Oland'' internationally; la, Oelandia) is the second-largest Swedish island and the smallest of the traditional provinces of Sweden. Öland has an area ...

and

Gotland Gotland (, ; ''Gutland'' in Gutnish), also historically spelled Gottland or Gothland (), is Sweden's largest island. It is also a province, county, municipality, and diocese. The province includes the islands of Fårö and Gotska Sandön to the ...

*1565 – 9 October The war's only big battle stands at Axtorna. Rantzau defeats a numerically superior Swedish army *1570 – 13 December A peace treaty ( Treaty of Stettin) is concluded and terminates the war between Denmark and Sweden. Denmark gives back Älvsborg in return for 150.000 daler (Danish coin)

Kalmar War (1611–1613)

*1611 – 4 April War between Denmark and Sweden breaks out when Sweden attempts to break the Danish monopoly on trade with

*1611 – 11 June The Swedish Army is defeated at

Kalmar Kalmar (, , ) is a city in the southeast of Sweden, situated by the Baltic Sea. It had 36,392 inhabitants in 2010 and is the seat of Kalmar Municipality. It is also the capital of Kalmar County, which comprises 12 municipalities with a total of ...

*1613 – 20 January Denmark and Sweden sign a peace treaty. Denmark becomes an uncontested power nation in

Thirty Years' War (1618–1648)

*1618 – Denmark enters the war between

Catholics The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

and

*1626 – The Danish Army under Christian the Fourth is defeated by a Catholic army in the

Battle of Lutter am Barenberge The Battle of Lutter (German: ''Lutter am Barenberge'') took place on 27 August 1626 during the Thirty Years' War, south of Salzgitter, in Lower Saxony. A combined Danish-German force led by Christian IV of Denmark was defeated by Johan Tzerclae ...

*1628 – In the battle of

Wolgast Wolgast (; csb, Wòłogòszcz) is a town in the district of Vorpommern-Greifswald, in Mecklenburg-Vorpommern, Germany. It is situated on the bank of the river (or strait) Peenestrom, vis-a-vis the island of Usedom on the Baltic coast that can be ...

, Christian the Fourth is crushed by a German army and forced to conclude peace

Thorsteinson War (1643–1645)

*1643 – December: War with Sweden breaks out because of a long dispute over the dominance of the

Øresund Øresund or Öresund (, ; da, Øresund ; sv, Öresund ), commonly known in English as the Sound, is a strait which forms the Danish–Swedish border, separating Zealand (Denmark) from Scania (Sweden). The strait has a length of ; its width v ...

, and dissent over the Øresund toll. *1643 – 12 December: The Swedish Field Marshal Thorsteinson crosses the border to

Holstein Holstein (; nds, label=Northern Low Saxon, Holsteen; da, Holsten; Latin and historical en, Holsatia, italic=yes) is the region between the rivers Elbe and Eider. It is the southern half of Schleswig-Holstein, the northernmost state of German ...

from Swedish territory in North Germany. *1644 – January:

Jutland Jutland ( da, Jylland ; german: Jütland ; ang, Ēota land ), known anciently as the Cimbric or Cimbrian Peninsula ( la, Cimbricus Chersonesus; da, den Kimbriske Halvø, links=no or ; german: Kimbrische Halbinsel, links=no), is a peninsula of ...

is occupied by Swedish troops. *1644 – February: Swedish troops under Gustav Horn advance into

Skåne Scania, also known by its native name of Skåne (, ), is the southernmost of the historical provinces (''landskap'') of Sweden. Located in the south tip of the geographical region of Götaland, the province is roughly conterminous with Skåne C ...

and are stopped at

Malmö Malmö (, ; da, Malmø ) is the largest city in the Swedish county (län) of Scania (Skåne). It is the third-largest city in Sweden, after Stockholm and Gothenburg, and the sixth-largest city in the Nordic region, with a municipal populat ...

. *1644 – 16 May: A Danish fleet defeats a Dutch fleet at Lister Dyb, which was sent to reinforce the Swedes. *1644 – 1 July: The Danish Fleet meets the Swedish Fleet at Koldberg Heide. The battle ends in a decisive Danish victory, and the Swedish withdraw to the

Kiel Bay The Bay of Kiel or Kiel Bay (, ; ) is a bay in the southwestern Baltic Sea, off the shores of Schleswig-Holstein in Germany and the islands of Denmark. It is connected with the Bay of Mecklenburg in the east, the Little Belt in the northwest, ...

. *1644 – 12 October: A combined Swedish and Dutch fleet defeats a Danish fleet at

Fehmarn Fehmarn (, da, Femern; from Old Wagrian Slavic "''Fe More''", meaning "''In the Sea''") is an island in the Baltic Sea, off the eastern coast of Germany's northernmost state of Schleswig-Holstein. It is Germany's third-largest island, after Rüg ...

. This effectively decides the outcome of the war. *1645 – February: Peace negotiations are started in Brømsebro. *1645 – 13 August: Denmark and Sweden conclude peace in Brømsebro. Denmark is forced to hand over

, Øsel and

Halland Halland () is one of the traditional provinces of Sweden (''landskap''), on the western coast of Götaland, southern Sweden. It borders Västergötland, Småland, Scania and the sea of Kattegat. Until 1645 and the Second Treaty of Brömsebro ...

(South Sweden) as well as the

Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe * Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including ...

province Jemtland.

Northern Wars (Carl Gustav Krigene) (1657–1660)

Scanian War (Skånske Krig) (1675–1679)

Great Northern War (Store Nordiske Krig) (1700–1720)

Linjeskibet Dannebroge brænder under Slaget i Køge Bugt

Rákóczi's War of Independence (1703-1711)

Russo-Swedish War (1788)

Napoleonic Wars (Napeoleonskrigene) (1800–1813)

Gunboat War (Kanonbådskrigen) (1807–1814)

First War of Schleswig (Treårskrigen / Første Slesvigske Krig) (1848–1850)

Second War of Schleswig (Krigen i 1864 / Anden Slesvigske Krig) (1864)

German Occupation (Den tyske besættelse) (1940–1945)

Operations in Bosnia (1994)

War in Afghanistan (2001–2021)

Invasion of Iraq (2003)

Military intervention in Libya (2011)

References

* ;Specific {{Military history of Europe

History History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the History of writing#Inventions of writing, invention of writing systems is considered prehistory. "History" is an umbr ...

Military A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct ...