U.S. President Donald Trump is threatening to withdraw from the Intermediate-Range Nuclear Forces (INF) Treaty, following Russia’s development of a new medium-range missile in violation of the deal. Moscow has denied it is breaking the treaty and repeatedly accused the US of violating its terms. U.S. National Security Adviser John Bolton held talks with top Russian officials Monday after President Donald Trump had declared an intention to pull out of a landmark nuclear weapons treaty. Russian President Vladimir Putin's spokesman Dmitry Peskov warned that the U.S. withdrawal from the treaty would "make the world a more dangerous place."