Secretary of Defense Chuck Hagel (left) and Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey during a Pentagon briefing on Thursday. Hagel said Islamic State militants in Iraq and Syria posed a threat "beyond anything we've seen."
Forces loyal to Syria's President Bashar Assad walk along a street in Mleiha, near the Damascus airport, during a tour organized by the Syrian government on Aug. 15.
U.S. Secretary of State John Kerry shown before boarding a helicopter to Amman, Jordan, in 2013. A report says that Germany inadvertently eavesdropped on at least one of Kerry's calls in the Middle East.
U.S. Maj. Gen. Harold Greene was visiting an Afghan military training academy Tuesday when he was shot dead by an Afghan soldier, who was subsequently killed. Afghan troops who knew the attacker say he disliked the Taliban and they aren't sure what his motive was.
U.S. Army/Getty Images
Cybersecurity researcher Ruben Santamarta says he has figured out how to hack the satellite communications equipment on passenger jets through their Wi-Fi and in-flight entertainment systems.
U.S. Army soldiers from 1st Platoon, G Troop, Task Force 1-35, 2nd Brigade Combat Team, move out on patrol in Iraq in 2008. A bipartisan panel says a Pentagon plan to cut Army strength go too far.
Sgt. Eric C. Hein/AP