"Deputy Defense Secretary Robert Work, who witnessed the launch, said the U.S. tests, conducted at least 15 times since January 2011, send a message to strategic rivals like Russia, China and North Korea that Washington has an effective nuclear arsenal." "And that is a signal ... that we are prepared to use nuclear weapons in defense of our country if necessary." "The nuclear spending boost is an ironic turn for a president who made reducing U.S. dependence on atomic weapons a centerpiece of his agenda during his first years in office." "He received the Nobel Peace Prize in part based on his stance on reducing atomic arms."