In World War I, National Guard soldiers made up 40 percent of the men in U.S. combat divisions in France. In World War II, the National Guard made up 18 divisions.[40] One hundred forty thousand Guardsmen were mobilized during the Korean War and over 63,000 for Operation Desert Storm. They have also participated in U.S. peacekeeping operations in Somalia, Haiti, Saudi Arabia, Kuwait, Bosnia, and Kosovo and for natural disasters, strikes, riots and security for the Olympic Games when they have been in the States.