Victor Davis Hanson
. . . "What ensured a war were the appeasement of Nazi Germany by Britain and France, the isolation of the United States from global responsibilities, and the collaboration of the Soviet Union with Adolf Hitler. All three developments combined to convince Hitler that he could bully or invade his neighbors without consequences.
"America entered the war on Britain’s side in late 1941, after more than two years of war that saw Hitler consolidate a continental empire larger than the present European Union. The United States declared war on Nazi Germany and fascist Italy on December 11, 1941 — but only after the two Axis powers declared war on us first. Had Hitler and Italy’s Benito Mussolini not declared war after Japan’s December 7, 1941 surprise attack on Pearl Harbor, America may well have concentrated on defeating Imperial Japan and stayed neutral in the European theater.
"Great Britain was the only major power to fight for the entire duration of World War II, from its beginning after the invasion of Poland on September 1, 1939 until the surrender of the Japanese in Tokyo Bay on September 2, 1945.
"In late June of 1940, after the fall of Western Europe, Britain was the only major power in the world still resisting Nazi Germany. Otherwise, all of Europe was either occupied by Hitler, neutral, or supposedly neutral but surreptitiously aiding the Third Reich with shipments of supplies.
". . . The Russians supplied Germany with key resources that helped the Luftwaffe bomb a solitary Britain during the Blitz of 1940-1941. Nearly 50,000 British civilians were killed by German bombers, cruise missiles, and rockets — while America’s continental homeland remained all but untouched."