What keeps President Barack Obama's national security team up at night? It's all laid out in the administration's new national security strategy document released by the White House on Friday.
원문출처 : http://edition.cnn.com/2015/02/06/politics/obama-national-security-strategy-document/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/02/06/politics/obama-national-security-strategy-document/index.html?eref=edition