U.S. general says cannot rule out larger ground role in Iraq

WASHINGTON (Reuters) - The most senior U.S. military officer raised the possibility on Tuesday that American troops might need to take on a larger role in Iraq's ground war against Islamic State militants, but the White House stressed they would not deploy on a combat mission.

General Martin Dempsey, chairman of the U.S. military's Joint Chiefs of Staff, said there was no intention now to place American military advisers on the ground in direct combat. U.S. assistance is taking other forms, including air strikes.