| Unit Name: | Basque Army |
| Native Name: | Euzko Gudarostea |
| Dates: | 17 July 1936 – 26 August 1937 |
| Country: | Spain |
| Allegiance: | Basque Government |
| Type: | Infantry |
| Size: | Corps |
| Garrison: | Bilbao |
| Colours: | --> |
| Colours Label: | --> |
| Battles: | Spanish Civil War |
| Commander1: | Alberto de Montaud Noguerol |
| Commander1 Label: | Chief of Staff |
| Commander2: | Justo Somonte Iturrioz |
| Commander2 Label: | Political commissar |
| Notable Commanders: | Kandido Saseta Jose Antonio Agirre |
Basque: '''Euzko Gudarostea''' (spelled in modern Basque: '''Eusko Gudarostea'''|lit=Basque army) was the name of the army commanded by the Basque Government during the Spanish Civil War. It was formed by Basque nationalists, socialists, communists, anarchists and republicans under the direction of lehendakari José Antonio Aguirre and coordinating with the army of the Second Spanish Republic. It fought the troops of Francisco Franco during 1936 and 1937.It surrendered to the Italian Corpo Truppe Volontarie at Santoña (province of Cantabria), while the rest of the Republican army kept fighting until 1939. This event is called the Santoña Agreement, Pact of Santoña, or Treason of Santoña by some Spanish leftists.
The Basque word for a soldier, gudari (plural gudariak), is a neologism (from guda, "war", thus meaning "warrior" literally). The Standard Basque word is the Romance-derived soldadu.[1] Like other Basque nationalist neologisms (ikurriña, lendakari), the meaning of gudari has been restricted to Basque concepts.The Basque word for an army is the Romance-derived armada.
The members of the Basque militant ETA consider themselves gudariak continuing the struggle of the Civil War Basque soldiers.This is contested by those war veterans that support the Basque Nationalist Party (PNV), Spanish Socialist Workers' Party or Communist Party.
The Gudari Eguna ("warrior day") is thus celebrated separately: