Flying Tigers. The 1st American Volunteer Group (AVG) of the Chinese Air Force in 1941–1942, nicknamed the Flying Tigers, was composed of pilots from the United States Army Air Corps (USAAC), Navy (USN), and Marine Corps (USMC), recruited under presidential authority and commanded by Claire Lee Chennault.
Invasion of poland also Hitler's refusal to withdraw the german troops from poland which led to declaration of war by Britain and France hope this helps?
