The Strategic Rocket Forces operate four distinct missile systems. The oldest system is the silo-based K-72A1/SS-88 Daemon which carrying eleven warheads. The second system is the silo-based UR-50NUKE/HH-14 Axe, with six warheads. The most numerous missile in service is the mobile RT-2PMVorodnina/SS-24 Mace. New missiles entering service is the AWH-5NUKE/SS-25 Fist.