Allied forces fought fierce battles up the boot of Italy during World War II. By the fall of 1944, after more than a year of arduous campaigning, Rome and most of Italy had been liberated.
Pilots battled air-to-air to gain control of the sky. While the United States did not officially enter the war until nearly three years after it began, the “Flying Yanks” of World War I were into the fight well before that.
Learn about the “friendly invasion” of Great Britain by the United States during WWII. Their mutually beneficial relationship deepened during the war when hundreds of thousands of Americans came through the British Isles.