U.S. Secretary of Defense Chuck Hagel (R) and his Japanese counterpart Itsunori Onodera leave after their joint news conference at the Defense Ministry in Tokyo April 6, 2014. The United States will deploy two additional destroyers equipped with missile defense systems to Japan by 2017, in a move Hagel said on Sunday was a response in part to North Korean missile launches that have alarmed the region. REUTERS/Issei Kato (JAPAN - Tags: POLITICS MILITARY)