Many of the tactics, techniques, and procedures used during the invasion of Sicily set a precedent for further development in Allied amphibious assaults in the European theater of operations.

Although the star was used as the main identification for Allied vehicles in World War II, its design changed over time.

The Eighth Air Force’s first penetrating strike into Nazi Germany was a bloody affair that provided lessons for both sides. 

Mark Stepelton flew in some of the most dangerous environments of the war by escorting bombing aircraft over occupied Europe and conducting air interdiction missions, striking enemy targets deep behind the lines. 

The United Nations was a child of World War II, and another one of FDR's good ideas.