Defense Secretary Ash Carter spoke with his United Kingdom counterpart Friday to reaffirm both nations' commitments to NATO and ongoing joint acquisition projects, such as the F-35 Joint Strike Fighter, in the wake of a U.K. vote to exit the European Union that sent economic shockwaves across the globe. Pentagon Press Secretary Peter Cook told reporters Friday that Carter spoke by phone with U.K. Defence Minister Michael Fallon and "emphasized the United States' unshakeable commitment to NATO, of which the...