WASHINGTON, Feb. 25, 2008 – Officials project five U.S. Army brigades and two Marine battalions will leave Iraq by the end of July, but it’s too soon to project troop levels beyond that, a senior U.S. military officer said here today. Army Lt. Gen. Carter F. Ham, the Joint Staff's director of operations, answers questions from reporters during a news briefing at the Pentagon on Feb. 25, 2008. Photo by Petty Officer 2nd Class Molly A. Burgess, USN (Click photo for screen-resolution image);high-resolution image available. “There is increasing pressure on al Qaeda in Iraq everywhere inside of Iraq,” Army Lt....