On April 8, 2010, former U.S. President Barack Obama and Russian President Dmitry Medvedev signed the New START Treaty, which called for a fifty percent reduction of strategic nuclear missile launchers and a curtailment of deployed nuclear warheads [REF].
On December 22, 2016, U.S. President Donald Trump proclaimed in a tweet that "the United States must greatly strengthen and expand its nuclear capability until such time as the world comes to its senses regarding nukes,"[REF] effectively challenging the world to re-engage in a race for nuclear dominance.