President George Bush, center, waves as he and his wife, Barbara, second from left, arrive aboard the amphibious assault ship USS NASSAU (LHA-4). Among those accompanying President and Mrs. Bush is GEN. H. Norman Schwarzkopf, third from left, commander in chief, U.S. central Command. The president and his wife are paying Thanksgiving Day visits to U.S. military personnel deployed to the Persian Gulf region for Operation Desert Shield