Shown are members of the elite Phoenix Ravens, assigned to March Field, participating in hand-to-hand combat as part of their quarterly training, Nov. 30. They are taught different fighting positions and ways to maneuver their bodies in order to gain control over an adversary in a hand-to-hand battle. Raven quarterly training involves a series of grueling physical fitness sessions, weapons training and hand-to-hand combat. (U.S. Air Force photo / Megan Crusher)
All of this week's top headlines to your email every Friday.