President Trump issued a warning on Monday to world players: until you follow our rules, we'll be building more nukes. After announcing over the weekend that the US will pull out of the decades-old Intermediate-Range Nuclear Forces Treaty with Russia, Trump told reporters "until people come to their senses, we will build it up" in reference to the country's nuclear arsenal. "It's a threat to whoever you want," Trump said. "And it includes China, and it includes Russia, and it includes anybody else that wants to play that game. You can't do that. You can't play that game on me." Per CNN, some officials have suggested the dual announcements are a bid to force the Kremlin into abiding by the Cold War era pact, which the White House says Russia has violated. (Not everyone is thrilled with Trump over the move, including former Soviet President Mikhail Gorbachev.)