Obama was expected to announce his decision Monday during a speech in Hannover, Germany, at the close of a week long trip, where ISIS was a focus of his meetings with world leaders in Saudi Arabia, Great Britain and Germany.
The move will significantly increase the U.S. presence in Syria and comes a week after Defense Secretary Ash Carter announced the deployment of a similar number of troops to Iraq, where Islamic State militants also control territory.
ABC’s Megan Hughes joined us from Washington.