At the NATO summit beginning today, President Obama and other foreign leaders are expected to discuss an international coalition against the militant group Islamic State. Speaking during his visit to Estonia, Obama said the U.S. objective is “to degrade and destroy ISIL.”

President Obama: “It’s going to take time for us to be able to roll them back, and it is going to take time for us to be able to form the regional coalition that’s going to be required so that we can reach out to Sunni tribes in some of the areas that ISIS is occupying and make sure that we have allies on the ground, in combination with the airstrikes that we’ve already conducted. So, the bottom line is this: Our objective is clear, and that is to degrade and destroy ISIL so that it’s no longer a threat, not just to Iraq, but also to the region and to the United States.”