Russia is deploying its ballistic missiles and attack submarines in numbers, range and aggression not seen in two decades, according to a top U.S. Navy official.
원문출처 : http://edition.cnn.com/2016/04/15/politics/mark-ferguson-naval-forces-europe-russian-submarines/index.html?eref=edition
원문출처 : http://edition.cnn.com/2016/04/15/politics/mark-ferguson-naval-forces-europe-russian-submarines/index.html?eref=edition