| Term | Definition |
| Pearl Harbor | FDR said the attack here is "a day that will live in infamy" |
| Axis Powers | Italy, Germany, and Japan |
| Allies | US, Great Britain, and USSR |
| Selective Service Act | 1st peace time draft |
| Liberty ship | steel hulled ships |
| A. Philip Randolf | Civil Rights activist, led a March on Washington which led to Executive Order 8802 |
| Manhattan Project | the code name for the atomic bomb project |
| rationing | establishing fixed allotments of goods deemed essential for the military |
| Dwight D Eisenhower | General who commanded troops in North Africa |
| Nisei | American citizens whose parents had emigrated from Japan |
| D-Day | June 6, 1944; first day of the attack on Normandy, France |
| Harry S Truman | FDR's vice president |
| Battle of the Bulge | Germany's last battle |
| V-E Day | May 8, 1945; Signaled the end to WWII |
| Douglas MacArthur | commander of the Allied forces on the Philippine islands |
| Battle of Midway | Considered the turning point in the Pacific War |
| kamikaze | Japanese suicide-plane |
| J Robert Oppenheimer | developed the atomic bomb |
| Hiroshima | 1st Japanese city to be bombed by an atomic bomb |
| Nagasaki | After dropping the bomb on this city, WWII ended |
| Big Three | Stalin, FDR, Churchill |
| Nuremberg trials | trials of high ranking German officials for war crimes |
| GI Bill of Rights | the Servicemen's Readjustment Act |
| Zoot Suit | Clothing worn by Mexican-Americans which used lots of material |
| internment | confinement |