Eastern Region Army Group

Eastern Region Army Group Grupo de Ejércitos de la Región Oriental (GERO)
Military flag of the Popular Army
Active	2 June 1938 – 9 February 1939
Country	Spain
Branch	Spanish Republican Army
Type	Army group
Role	Home Defence
Garrison/HQ	Igualada
Engagements	Spanish Civil War Battle of the Ebro Battle of the Segre Catalonia Offensive
Commanders
Notable commanders	Juan Hernández Saravia Enrique Jurado Barrio

The Eastern Region Army Group, Spanish: Grupo de Ejércitos de la Región Oriental (GERO), was a military formation of the Spanish Republican Army during the last phase of the Spanish Civil War. It was established in June 1938 as a response to the splitting in two of the territory under the sovereignty of the Spanish Republic after the Central Region Army Group (GERC), under the command of General Miaja, had been set up in the central-southern region of Spain.

This army group of the Spanish Republican military lasted until the Fall of Catalonia on 9 February 1939.