Recently, the South American Alliance formed by Bolivia, Chile, Ecuador and Peru had fought a war against the Kingdom of Spain over the control of the Chincha Islands, the First Pacific War or Chincha Islands War. The war had ended in 1865, but it wasn't until 1875 that the Treaty of Tallahassee was signed between Spain and the South American Alliance was signed. Spain, despite the defeat, managed to gain access to South America thanks to a commercial treaty with Peru and Bolivia, using the recently built Casas de España as headquarters to the trading missions.