European Theatre, from North Africa to the Battle of the Bulge, and in the Pacific Theater of Operations, from Bataan to Okinawa. According to the National World War II Museum, between 250,000 and 500,000 Hispanic Americans served in the Armed Forces during WWII, out of a total of 10,420,000, comprising 2.3% to 4.7% of the Armed Forces. The exact number is unknown as, at the time, Hispanics were integrated into the general white population census count. Separate statistics were kept for African-Americans and Asian-Americans.On December 7, 1941, when the United States officially entered the war, Hispanic Americans were among the many American citizens who joined the ranks of the Army, Navy and Marine Corps as volunteers or through the draft. Not only did Hispanics serve as active combatants in the European and Pacific Theatres of war, but they also served on the home front as civilians.