A series of tornadoes sweeping across the U.S. left ten people dead this week, and more warnings are expected for the weekend.

U.S. defense officials said one American soldier was killed Thursday morning as Special Forces and Iraqi troops raided an ISIS-run prison in northern Iraq, the first U.S. soldier killed in action in Iraq since 2011.

For the first month in close to eight years, there were no American military deaths in Afghanistan.

A month has passed without a single American soldier having lost his life in Iraq, according to the Department of Defense. That would be a first since the 2003 invasion. It was also the deadliest in Afghanistan: 67 are dead.