Here’s a sorted list of the events based on the years provided (1938, 1941, and 1942):
1938
- Munich Pact policy of appeasement fails to stop German expansion.
- Germany expands in Europe through force.
1941
- U.S. begins to provide military aid to Britain under the Lend-Lease Act.
- Japanese planes bomb U.S. naval base at Pearl Harbor in Hawaii.
- U.S. begins internment of Japanese Americans.
1942
- U.S. troops invade Italy.
- Winston Churchill, Franklin Roosevelt, and Joseph Stalin meet in Tehran to discuss Allied war priorities.
- U.S. Navy defeats Japanese forces at Midway, a turning point in the war.
- Holocaust of Jews, others carried out by Nazi Germans in concentration camps begins.
Note: The events grouped under each year reflect the historical timeline of World War II and the actions taken by various nations. The corresponding number of events per year has been adhered to as per your hint.