According to US Navy Lieutenant commander Jim Brooks, a spokesman for the Defense Intelligence Agency, such playing cards have been used as far back as the US Civil War and again in World War II—Army Air Corps decks printed with the silhouettes of German and Japanese fighter aircraft fetch hundreds of dollars today—and in the Korean War. Troops often play cards to pass the time, and seeing the names, faces and titles of the wanted Iraqis during their games will help soldiers and Marines in case they run into the wanted individuals in the field, Brooks said.