RS-24 is a missile that is heavier than the current SS-27 Mod 1 (Topol-M), and which some reports say can carry up to 10 independently targetable warheads.[12] The 2007 tests were publicized as a response to the missile shield that the United States were planning to deploy in Europe.[13][14] RS-24 has been deployed operationally since 2010, with more than 50 launchers operational as of June 2017.[1]