The new U.S. operational commander in Iraq said Sunday that it will take two or three more years for American forces to gain the upper hand in the war — even if President Bush sends in more troops. Lt. Gen. Raymond Odierno’s comments come just days before the president is planning to announce a new escalation of the war. The president is expected to give a prime-time speech on Wednesday night and call for 20,000 more troops and the creation of a billion-dollar Iraqi jobs program run by the U.S. Army.