What operation was the first major attempt by the Allies to take home territory of an Axis nation?

Operation Husky was indeed the first major Allied campaign launched to invade an Axis-held territory. This operation involved the invasion of Sicily, which began in July 1943. It served not only as a strategic military operation to gain a foothold in Italy but also as a crucial move to divert Axis resources and attention from the Eastern and Western Fronts. The success of Operation Husky enabled the Allies to subsequently launch operations on the Italian mainland and further weaken Axis powers.

Understanding the significance of this operation highlights how it marked the beginning of a concerted effort by the Allies to penetrate Axis-controlled territory and initiate the liberation of occupied nations. The campaign played a pivotal role in the broader context of World War II, setting the stage for subsequent operations in Europe.