Washington (AFP) - A top US navy admiral announces the re-establishment of the US 2nd Fleet -- a Cold War command disbanded in 2011 -- to patrol the North Atlantic and face a resurgent threat from Russia. The chief of US Naval Operations, Admiral John Richardson, made the announcement during a change of command ceremony Friday in the Atlantic naval port of Norfolk, Virginia. "Our National Defense Strategy makes clear that we're back in an era of great power competition as the security environment continues to grow more challenging and complex," said Richardson, according to a navy statement. "That's...