NATO forces conduct defense drills

Read MoreAs Russia’s rhetoric around the war in Ukraine remains threatening, NATO forces are exhibiting capable force with exercises in surrounding countries. CBS News correspondent Chris Livesay is on board the USS George H.W. Bush in the Mediterranean where NATO forces prepare for an escalation.As Russia’s rhetoric around the war in Ukraine remains threatening, NATO forces are exhibiting capable force with exercises in surrounding countries. CBS News correspondent Chris Livesay is on board the USS George H.W. Bush in the Mediterranean where NATO forces prepare for an escalation.