ISIL

"Victims include women, children, elderly and persons with disabilities, members and former members of the Iraqi armed forces and police," says a new U.N. report that details 202 mass graves.

Drone pilots and intelligence analysts who work with them may not be in physical danger themselves but "no doubt are war fighters" who experience psychological stress, says the Air Force.

The U.S.-led coalition fighting ISIS says it launched the strike at the request of the Iraqi military, and that ISIS was using the hospital complex as a command and control center.

The fighters are allegedly killing civilians who refuse to comply with their instructions or who they suspect are loyal to the Iraqi security forces, the U.N. human rights chief says.

Militants struck police stations and a power station in the northern city. In Mosul, the U.N. says it is concerned ISIS may be using civilians as human shields as Iraqi forces advance.

Secretary of Defense Ash Carter says the increase, which brings the American total to about 5,000, anticipates a major operation to retake the Islamic State-held city of Mosul.

Two years ago, "to many observers, ISIL looked invincible," Obama said at the Pentagon on Thursday. But now: "ISIL turns out not to be invincible, they're in fact inevitably going to be defeated."

In an update to Congress, CIA chief John Brennan said the U.S. and its partners have put ISIS on the defensive. But that doesn't mean its global reach has been degraded.

The prime minister says Canada will stop its airstrikes within two weeks, and will step up training for local security forces fighting ISIS militants.