Allied Nations

Defense Secretary Jim Mattis resigned Thursday, saying he'll stay until the end of February.

The sale is unconfirmed, as the country already has agreed to buy Russia's S-400 "F-35 Killer" system.

National Security Adviser John Bolton said the command should be headquartered in the region it covers.

The fathers of three U.S. troops killed in Jordan compared the deaths of their sons to the murder of Jamal Khashoggi.

Iraq's prime minister declared "final victory" over ISIS last year, but intense fighting continues.

The president defended himself Tuesday after canceling a visit to honor the fallen of World War I over the weekend.

Marines are landing in Iceland, a carrier is sailing past the Arctic Circle and U.S. aircraft are soaring over Scandinavia.

This comes just four days after another insider attack left an Afghan police chief dead and an American general wounded.

"U.S. energy independence is going to be a game changer in international affairs and will have far-ranging consequences."

As of Aug. 31, Air Force tankers had conducted 2,919 sorties and offloaded 92.3 million pounds of fuel to coalition fighters.