Acronyms
ABM — Anti-Ballistic Missile (Treaty)
ASAT — anti-satellite (weapons)
BMD — ballistic missile defense
CD — UN Conference on Disarmament
CTBT — Comprehensive Test Ban Treaty
DEW — directed energy weapon
FEL — free-electron lasers
FMCT — Fissile Material Cutoff Treaty
GEO — geosynchronous orbit
GMD — ground-based mid-course defense
GPS — Global Positioning System
GUKOS — Main Space Systems Directorate
HEL — high-energy laser
HEO — highly elliptical orbit
HPM — high-powered microwave
ICBM — intercontinental ballistic missile
KEW — kinetic energy weapon
LEO — low Earth orbit
MDA — Missile Defense Agency
MEO — medium Earth orbit
MRV — multiple reentry vehicle
MIRV — multiple independently targeted reentry vehicle
NIE — National Intelligence Estimate
NFIRE — Near Field Infrared Experiment (satellite)
NPR — Nuclear Posture Review
OKIK — stationary control and measurement complex
OST — Outer Space Treaty
PAROS — prevention of an arms race in outer space
PRC — People’s Republic of China
SBI — space-based interceptor
SDI — Strategic Defense Initiative
SBIRS — space-based infrared system
SBL — space-based laser
SLBM — submarine-launched ballistic missile
THAAD — Theater High Altitude Area Defense
UNKS — United Space Systems Directorate