Complex sentence: In 1940, it had the name of "Copa de Campeones", and was not played again until 1945, when the ambassador of Argentina, due to the good relations with the military government, offered a trophy called "Copa de Oro Argentina".
Split into simpler sentences: In 1940, it had the name of "Copa de Campeones". It was not played again until 1945, when the Ambassador of Argentina, due to the good relations with the military government, offered a trophy called "Copa de Oro Argentina".