Abbreviations: AAM Air-to-Air Missile ABM Anti-Ballistic Missile ACM Advanced Cruise Missile ADM Atomic Demolition Munition AFAP Artillery Fired Atomic Projectile ALCM Air Launched Cruise Missile ASM Air-Surface Missile ASW Anti-Submarine Warfare ER Enhanced Radiation ("neutron bomb") EC Emergency Capability F/F Freefall FRP Fire Resistant Pit FUFO Full-fuzing Options HEU Highly Enriched Uranium ICBM Intercontinental Ballistic Missile IFI In-Flight Insertion IHE Insensitive High Explosive IRBM Intermediate-Range Ballistic Missile Kt Kilotons LANL Los Alamos National Laboratory (nee LASL) LASL Los Alamos Scientific Laboratory LLNL Lawrence Livermore National Laboratory (nee LRL) LRL Lawrence Radiation Laboratory (nee UCRL) MK Mark MRBM Medium-Range Ballistic Missile Mt megatons PAL Permissive Action Link Pu Plutonium RV Re-entry Vehicle SAM Surface-to-Air Missile Rtd Parachute-retarded SLBM Sea-Launched Cruise Missile SSM Surface-to-Surface Missile T tons TN Thermonuclear UCRL University of California Radiation LaboratoryUSN US Navy