<P> During the 2003 invasion of Iraq by a United States - led coalition, the U.S. military developed a set of playing cards to help troops identify the most - wanted members of President Saddam Hussein's government, mostly high - ranking members of the Iraqi Regional Branch of the Arab Socialist Ba'ath Party or members of the Revolutionary Command Council . The cards were officially named the "personality identification playing cards". </P> <P> Each card contains the wanted person's address and, if available, the job performed by that individual . The highest - ranking cards, starting with the aces and kings, were used for the people at the top of the most - wanted list . The ace of spades is Saddam Hussein, the aces of clubs and hearts are his sons Qusay and Uday respectively, and the ace of diamonds is Saddam's presidential secretary Abid Hamid Mahmud al - Tikriti . This strict correspondence to the order of the most - wanted list was not carried through the entire deck, but some time later in 2003, the list itself was renumbered to conform (almost) to the deck of cards . The card backs feature a green military camouflage pattern . </P> <P> 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 . </P>

Who were the four aces in the military's most wanted deck of cards