The Battle of La Plata (July 11–21, 1958) was part of Operation Verano, the summer offensive of 1958 launched by the Batista government during the Cuban Revolution. The battle resulted from a complex plan created by Cuban General Cantillo to directly attack Castro's mountain base in the Sierra Maestra. The battle ended with the humiliating surrender of the assault battalion and the loss of some 500 Cuban army soldiers (killed, wounded, and captured).