Mortars were heard in Baghdad's green zone Wednesday, as U.S. forces continued to pound ISIS targets in both Iraq and Syria. The crucial nation of Turkey, which shares a border with both Iraq and Syria, has finally agreed to join the fight.
The man tapped by the Obama administration to coordinate the international effort against ISIS tells CNN's Elise Labott exclusively that the war won't be swift.
General John Allen says training Syrian rebels, who are key to fighting the terror group on the ground, is going to take a long time.
"Over the long-term, the intent is to build credible forces, vetted forces," Allen told Labott. "We have been saying that all along, it is going to take a while. It could take years actually... and so we have to manage our expectations."
As for Iraq, it doesn't look like the fight against ISIS there will end anytime soon either.
CNN's Tom Foreman is OutFront.