Rosas' Siege of Buenos Aires

Rosas' Siege of Buenos Aires occurred in 1845-46 when Juan Manuel de Rosas, the leader of Buenos Aires Province, laid siege to the city of Buenos Aires itself. Rosas aimed to assert control over the city, which was legally separate from his province. The siege involved blockading the city with troops and supplies, cutting off its resources. Despite hardships, the city defenses held, and the siege ultimately failed. This event reflected political tensions in Argentina at the time, with Rosas seeking to consolidate power over the entire country amidst regional conflicts.