Pace, 59, is the current vice-chairman of the JCS. If confirmed by the Senate, he would be the first Marine ever to hold the post as the president's and defense secretary's chief military adviser.
"He knows the job well," Bush said. "For the past three and a half years he has served under our superb secretary of defense, Don Rumsfeld. He's been the deputy to one of
the most outstanding chairmen our nation has ever had, Gen. Richard Myers."
Pace joined the JCS, which is composed of the top officers of the military services, in 2001. Previously, he was head of the U.S. military's Southern Command and was responsible for military operations in Latin America.
Myers, who replaced Army Gen. Hugh Shelton in 2001, retires from military service at the end of September.