>> our hearts go out to all of those families. thank you very much. other important news. isis has lost control of its self-declared capital in syria. u.s.-backed forces have ended military operations in the city of raqqa. that comes at a high price. this is what it looks like right now in this drone video obtained by cnn. the tremendous devastation after a months long assault. the u.s.-backed forces are clearing out the final pockets of resistance right now. it's a landmark moment in the decline of isis in the mideast. this map shows how little territory remains in actual isis control. let's go to nick peyton walsh against isis extensively. why is this victory so significant? >> reporter: this is the place they called the capital or the