First Army may refer to:

China

New 1st Army The New 1st Army () was reputed to be the most elite military unit of the Chinese National Revolutionary Army. Nicknamed the "First Army Under Heaven" during the Chinese Civil War, it caused the most Imperial Japanese Army, Japanese Army casualties ...

, Republic of China *

First Field Army The First Field Army of the Chinese Communist Party was a Communist military formation in the last stages of the Chinese Civil War (1949–1950). The Northwest Field Army was originally under the command of Peng Dehuai with He Long and Xi Zhongxu ...

, a Communist Party of China unit in the Chinese Civil War * 1st Group Army, People's Republic of China

Germany

1st Army (German Empire) The 1st Army (german: 1. Armee / Armeeoberkommando 1 / A.O.K. 1) was an army level command of the German Army in World War I. It was formed on mobilization in August 1914 from the VIII Army Inspectorate. The army was dissolved on 17 Septembe ...

, a World War I field Army * 1st Army (Wehrmacht), a World War II field army *

1st Panzer Army The 1st Panzer Army (german: 1. Panzerarmee) was a German tank army that was a large armoured formation of the Wehrmacht during World War II. When originally formed on 1 March 1940, the predecessor of the 1st Panzer Army was named Panzer Group ...

* 1st Parachute Army (Wehrmacht)

Russia and the Soviet Union

1st Army (Russian Empire) The 1st Army (russian: 1-я армия, translit=1А) was an army-level command of the Russian Imperial Army created during World War I. The First Army, commanded by General Paul von Rennenkampf, invaded East Prussia at the outbreak of war in 19 ...

* 1st Red Banner Army * 1st Shock Army * 1st Guards Tank Army (Russia)

Others

First Allied Airborne Army The First Allied Airborne Army was an Allied formation formed on 2 August 1944 by the order of General Dwight D. Eisenhower, the Supreme Allied Commander of the Allied Expeditionary Force. The formation was part of the Allied Expeditionary Force ...

First Australian Army The First Australian Army was a field army of the Australian Army, during World War II. The formation's headquarters was raised in April 1942 from the existing 1 Aust Corps, 1st Australian Corps headquarters, assuming command of all Allied tr ...

1st Army (Austria-Hungary) The 1st Army (german: k.u.k. 1. Armee) was a field army-level command in the ground forces of Austria-Hungary during World War I. The army fought in Galicia and Russian Poland in 1914–15 before being briefly dissolved in the summer of 1916. Shor ...

First Army (United Kingdom) The First Army was a formation of the British Army that existed during the First and Second World Wars. The First Army included Indian and Portuguese forces during the First World War and American and French units during the Second World War. Fi ...

First Army (Bulgaria) The Bulgarian First Army was a Kingdom of Bulgaria, Bulgarian field army during the Balkan Wars, World War I and World War II. Balkan Wars First Balkan War Following the military reforms of 1907 the territory of the Bulgarian Kingdom was divid ...

First Canadian Army The First Canadian Army (french: 1reArmée canadienne) was a field army and a formation of the Canadian Army in World War II in which most Canadian elements serving in North-West Europe were assigned. It served on the Western Front from July 1944 ...

1st Army (France) The First Army (french: 1re Armée) was a field army of France that fought during World War I and World War II. It was also active during the Cold War. First World War On mobilization in August 1914, General Auguste Dubail was put in the c ...

First Army (Greece) The Greek First Army (, ''Proti Stratia''), is the highest formation of the Hellenic Army and its only extant field army. Various English and German-language sources erroneously mention the existence of a First Army during the Greco-Italian War ...

First Army (Hungary) The Hungarian First Army was a field army of the Royal Hungarian Army that saw action during World War II. Commanders * Lieutenant-General Vilmos Nagy - March 1, 1940 – February 1, 1941 * Lieutenant-General István Schweitzer - February 1, ...

First Army (Italy) The 1st Army ( it, 1ª Armata) was an Royal Italian Army field army, in World War I, facing Austro-Hungarian and German forces, and in World War II, fighting on the North African front. World War I During World War I, the 1st Army bore the respo ...

First Army (Japan) The was an army of the Imperial Japanese Army. It was raised and demobilized on three occasions. History The Japanese 1st Army was initially raised during the First Sino-Japanese War from 1 September 1894 – 28 May 1895 under the command of ...

First Army (Ottoman Empire) The First Army or First Guards Army of the Ottoman Empire ( Turkish: ''Birinci Ordu'' or ''Hassa Ordusu'') was one of the field armies of the Ottoman Army. It was formed in the middle 19th century during Ottoman military reforms. Formations Or ...

First Polish Army (1920) The First Army was a field army of the Polish Army that existed during the Polish–Soviet War. In March 1920 the Headquarters of the Army decided to disband the Front HQs active until then and reform them into separate armies. The largest of Po ...

First Polish Army (1944–1945) The Polish First Army ( pl, Pierwsza Armia Wojska Polskiego, 1 AWP for short, also known as Berling's Army) was an army unit of the Polish Armed Forces in the East. It was formed in the Soviet Union in 1944, from the previously existing Polish I ...

First Army (Romania) The First Army was a field army of the Romanian Land Forces, active from 1916 to 2000. World War I The First Army took part in the Romanian Campaign of World War I. Its commanders during that time were : * Divisional General Ioan Culcer: ...

First Army (Serbia) The Serbian First Army (Српска Прва Армија / Srpska Prva Armija) was a Serbian field army that fought during World War I. Order of battle August 1914 *First Army - staff in the village Rača **I Timok Infantry Division - Smeder ...

First Army (Turkey) The First Army of the Republic of Turkey () is one of the four field armies of the Turkish Army. Its headquarters is located at Selimiye Barracks in Istanbul. It guards the sensitive borders of Turkey with Greece and Bulgaria, including the st ...

First Army (United Arab Republic) The First Field Army was a designation used during the period of the United Arab Republic. It was based in Syria. During the period of the United Arab Republic, the army based in Syria was designated the First, and the other armies in Egypt the Se ...

First United States Army First Army is the oldest and longest-established field army of the United States Army. It served as a theater army, having seen service in both World War I and World War II, and supplied the US army with soldiers and equipment during the Korea ...

1st Army (Kingdom of Yugoslavia) The 1st Army was a Royal Yugoslav Army formation commanded by ''Armijski đeneral'' Milan Rađenković during the German-led Axis invasion of the Kingdom of Yugoslavia in April 1941 during World War II. It consisted of one infantry division, on ...

China

Germany

Russia and the Soviet Union

Others

See also