IV Army Corps (Spain)

The IV Army Corps (Spanish: Cuerpo de Ejército IV) was a military formation of the Spanish Army during the Spanish Civil War. It was primarily active on the Andalusian Front.

Formed in the spring of 1937, the IV Army Corps incorporated several divisions operating within Andalusia, a region largely controlled by the Nationalist faction. Its creation was part of the Republican government's reorganization of its armed forces, aimed at improving command and control. The specific composition of the IV Army Corps varied throughout the war, but it generally included divisions responsible for sectors of the front stretching through provinces such as Córdoba, Jaén, and Granada.

The IV Army Corps engaged in defensive actions and limited offensives along the Andalusian Front. This sector was characterized by relatively static trench warfare compared to the more dynamic fronts in the north and east of Spain. Despite the lack of major breakthroughs, the corps participated in several notable battles and skirmishes, attempting to contain Nationalist advances and maintain Republican control over key areas.

Command of the IV Army Corps changed hands several times during the war. Notable commanders included individuals such as Domingo Moriones Larraga. The effectiveness of the corps was often hampered by shortages of supplies, equipment, and experienced officers, factors that affected the Republican Army as a whole.

Following the Nationalist victory in 1939, the IV Army Corps was dissolved along with the rest of the Republican military. Its surviving members were either imprisoned, executed, or forced into exile.