LNG — Liquid Natural Gas
LT — Lieutenant
LUMES — Master’s Degree Program in Environmental Studies and Sustainability Science
LZ — Landing Zone
MANPADS — Man-Portable Air Defense System
MARCOM — Allied Maritime Command
MCLIC — Mine Clearing Line Charge
METOC — Meteorology and Oceanography
MMO — Massively Multiplayer Online (video games)
MP — Military Police
MRE — Meals Ready-to-Eat
MRL — Multiple Rocket Launcher
MSE — Missile Segment Enhancement
MSS — Ministry of State Security (Chinese version of secret police, FBI, and CIA combined)
MTU — Motoren- und Turbinen-Union, a well-known German manufacturer of high-performance diesel engines and propulsion systems.
MV — Motor Vehicle
NATO — North Atlantic Treaty Organization
NCO — Non-Commissioned Officer
NGO — Non-governmental Organization
NOFORN — No Foreign Dissemination (classification level)
NSA — National Security Advisor OR National Security Agency
NSB — Naval Submarine Base
OCP — Operational Camouflage Pattern
OPFOR — Opposing Forces
OPSEC — Operations Security
PC — Personnel Carrier
PDW — Personal Defense Weapon
PFC — Private First Class
PLA — People’s Liberation Army (Chinese Army)
PLAN — People’s Liberation Army Navy (Chinese Navy)
PMC — Private Military Contractor
POI — Program of Instruction
PRC — People’s Republic of China
PT — Physical Training
REFORGER — Return of Forces to Germany
RFID — Radio Frequency Identification
RHIB — Rigid-Hulled Inflatable Boat
ROC — Republic of China (Taiwan)
ROE — Rules of Engagement
RO/RO — Roll-on, Roll-off
S2 — Intelligence Officer
SACEUR — Supreme Allied Commander Europe
SCIF — Sensitive Compartmented Information Facility
SEAL — Sea, Air, and Land (Navy special forces)
SECNAV — Secretary of the Navy
SFC — Sergeant First Class
SHAPE — Supreme Headquarters Allied Powers Europe
SHORAD — Short-Range Air Defense
SIGINT — Signals Intelligence
SME — Subject Matter Expert
SOCEUR — Special Operations Command Europe
SOSUS — Sound Surveillance System
SUV — Sports Utility Vehicle
SVR — Russian Foreign Intelligence
SVTC — Secure Video Teleconferencing
TAO — Tactical Action Officer
TC — Tank Commander
TF — Task Force
TOC — Tactical Operations Center
UCSD — University of California, San Diego
UN — United Nations
USN — United States Navy
USNS — United States Naval Ship
USS — United States Ship
USV — Unmanned Surface Vehicle
UUV — Unmanned Underwater Vehicle
VDV — Soviet Airborne Forces
VHFVery High Frequency
VLS — Vertical Launching System
VPN — Virtual Private Network
XLUUV — Extra Large Unmanned Undersea Vehicle
XO — Executive Officer
