U.S. Secretary of Defense Chuck Hagel, center left, exchanges greetings with Israeli Brig. Gen. Shahar Sochat, the commander of the Israel Air Defense Command, at an air base outside Tel Aviv, Israel, May 15, 2014. Hagel received a briefing on exercise Juniper Cobra 14 during his visit to the base and met with U.S. and Israeli troops stationed in the area.