The issue focused on the president's policy of using military force to fight Islamic State.

"It is not a question of being used in this way, it is a question of what we are going to do with all of our men and women in uniform," said Col. Rob Manning, who led the review. "We have been very clear that we will not be taking any action that would put U.S. soldiers at risk or place U.S. lives in danger."

But some Republican