A directory of U.S. military bases worldwide. Sort by state, OCONUS/CONUS or by branch of service and find hundreds of military bases.
U.S. Military Bases
| Base | State | Area | Army | Navy | USAF | USMC | USCG | DLA |
|---|---|---|---|---|---|---|---|---|
| Aviano Air Base | Italy | OCONUS | USAF | |||||
| March ARB | CA | CONUS | USAF | |||||
| Papa Air Base | Hungary | OCONUS | USAF | |||||
| Los Angeles AFB | CA | CONUS | USAF | |||||
| Joint Region Marianas - Naval Base Guam | Guam | OCONUS | Navy | |||||
| Fort Irwin | CA | CONUS | Army | |||||
| Joint Region Marianas - Andersen AFB | Guam | OCONUS | USAF | |||||
| Fort Hunter Liggett | CA | CONUS | Army | |||||
| Naval Support Activity Souda Bay | Greece | OCONUS | Navy | |||||
| Edwards AFB | CA | CONUS | USAF | |||||
| USAG Wiesbaden | Germany | OCONUS | Army | |||||
| Defense Distribution Depot San Joaquin | CA | CONUS | DLA | |||||
| USAG Stuttgart | Germany | OCONUS | Army | |||||
| Camp Pendleton | CA | CONUS | USMC | |||||
| USAG Rheinland-Pfalz, Baumholder | Germany | OCONUS | Army | |||||
| Camp Parks | CA | CONUS | Army | |||||
| USAG Rheinland-Pfalz Kaiserslautern Military Community | Germany | OCONUS | Army | |||||
| Beale AFB | CA | CONUS | USAF | |||||
| USAG Bavaria, Hohenfels | Germany | OCONUS | Army | |||||
| Yuma Proving Ground | AZ | CONUS | Army | |||||
| USAG Bavaria, Garmisch | Germany | OCONUS | Army | |||||
| USAREC, Phoenix Battalion | AZ | CONUS | Army | |||||
| USAG Bavaria | Germany | OCONUS | Army | |||||
| MCAS Yuma | AZ | CONUS | USMC | |||||
| Spangdahlem AB | Germany | OCONUS | USAF | |||||
| Luke AFB | AZ | CONUS | USAF | |||||
| Ramstein AB | Germany | OCONUS | USAF | |||||
| Fort Huachuca | AZ | CONUS | Army | |||||
| Kalkar - U.S. Air Force Element | Germany | OCONUS | USAF | |||||
| Davis-Monthan AFB | AZ | CONUS | USAF | |||||
| Geilenkirchen NATO Air Base | Germany | OCONUS | USAF | |||||
| Pine Bluff Arsenal | AR | CONUS | Army | |||||
| Buechel Air Base | Germany | OCONUS | USAF | |||||
| Little Rock AFB | AR | CONUS | USAF | |||||
| Ansbach, United States Army Garrison | Germany | OCONUS | Army | |||||
| USCG Aviation Training Center | AL | CONUS | ||||||
| Naval Station Guantanamo Bay | Cuba | OCONUS | Navy | |||||
| USAREC, Montgomery Battalion | AL | CONUS | Army | |||||
| Navy Support Facility Diego Garcia | British Indian Ocean Territory | OCONUS | Navy | |||||
| USAREC, 2nd Medical Recruiting Battalion | AL | CONUS | Army | |||||
| USAG Benelux-Brussels-Schinnen | Belgium | OCONUS | Army | |||||
| Redstone Arsenal | AL | CONUS | Army | |||||
| USAG BENELUX/SHAPE | Belgium | OCONUS | Army | |||||
| Maxwell AFB and Gunter Annex | AL | CONUS | USAF | |||||
| Kleine Brogel Air Base | Belgium | OCONUS | USAF | |||||
| Fort Rucker | AL | CONUS | Army | |||||
| Naval Support Activity Bahrain | Bahrain | OCONUS | Navy | |||||
| Anniston Army Depot | AL | CONUS | Army | |||||
| Canberra | Australia | OCONUS | USAF | |||||
| Lajes Field | AF Europe, Middle East, Africa | OCONUS | USAF | |||||
| Commander Fleet Activities Yokosuka | AF Europe, Middle East, Africa | OCONUS | Navy | |||||
| Armed Forces Pacific | AF Europe, Middle East, Africa | OCONUS | ||||||
| Ankara | AF Europe, Middle East, Africa | OCONUS | USAF | |||||
| F. E. Warren AFB | WY | CONUS | USAF | |||||
| USAREC, Milwaukee Battalion | WI | CONUS | Army | |||||
| Fort McCoy | WI | CONUS | Army | |||||
| USCG Base Seattle | WA | CONUS | USCG | |||||
| USAREC, Seattle Battalion | WA | CONUS | Army | |||||
| US Army Cadet Command 8th Brigade | WA | CONUS | Army | |||||
| Naval Station Everett | WA | CONUS | Navy | |||||
| Naval Base Kitsap | WA | CONUS | Navy | |||||
| Naval Air Station Whidbey Island | WA | CONUS | Navy | |||||
| Joint Base Lewis-McChord | WA | CONUS | Army | |||||
| Fairchild AFB | WA | CONUS | USAF | |||||
| USAREC, Richmond Recruiting Battalion | VA | CONUS | Army | |||||
| Surface Combat Systems Center Wallops Island | VA | CONUS | Navy | |||||
| Norfolk Naval Shipyard | VA | CONUS | Navy | |||||
| Newport News Shipyard | VA | CONUS | Navy | |||||
| Naval Weapons Station Yorktown | VA | CONUS | Navy | |||||
| Naval Support Activity South Potomac (NSF Dahlgren) | VA | CONUS | Navy | |||||
| Naval Support Activity Hampton Roads Northwest Annex | VA | CONUS | Navy | |||||
| Naval Station Norfolk | VA | CONUS | Navy | |||||
| Naval Air Station Oceana Dam Neck Annex | VA | CONUS | Navy | |||||
| Naval Air Station Oceana | VA | CONUS | Navy | |||||
| MCCS Hampton Roads | VA | CONUS | USMC | |||||
| Marine Corps Base Quantico | VA | CONUS | USMC | |||||
| Joint Expeditionary Base Little Creek-Fort Story | VA | CONUS | Navy | |||||
| Joint Base Langley-Eustis | VA | CONUS | USAF | |||||
| Henderson Hall (Joint Base Myer - Henderson Hall) | VA | CONUS | USMC | |||||
| Fort Myer (Joint Base Myer - Henderson Hall) | VA | CONUS | Army | |||||
| Fort Lee | VA | CONUS | Army | |||||
| Fort Belvoir | VA | CONUS | Army | |||||
| DLA McNamara HQC | VA | CONUS | DLA | |||||
| Defense Supply Center Richmond | VA | CONUS | DLA | |||||
| USAREC, Salt Lake City Battalion | UT | CONUS | Army | |||||
| Hill AFB | UT | CONUS | USAF | |||||
| Dugway Proving Ground | UT | CONUS | Army | |||||
| USAREC, San Antonio Battalion | TX | CONUS | Army | |||||
| USAREC, Houston Battalion | TX | CONUS | Army | |||||
| USAREC, Dallas Battalion | TX | CONUS | Army | |||||
| USAREC, 5th Medical Recruiting Battalion | TX | CONUS | Army | |||||
| US Army Cadet Command 5th Brigade | TX | CONUS | Army | |||||
| Sheppard AFB | TX | CONUS | ||||||
| Red River Army Depot | TX | CONUS | Army | USAF | ||||
| Naval Air Station Kingsville | TX | CONUS | Navy | |||||
| Naval Air Station Joint Reserve Base Fort Worth | TX | CONUS | Navy | |||||
| Naval Air Station Corpus Christi | TX | CONUS | Navy | |||||
| Laughlin AFB | TX | CONUS | USAF | |||||
| Joint Base San Antonio (Lackland, Randolph, Sam Houston) | TX | CONUS | USAF | |||||
| Goodfellow AFB | TX | CONUS | USAF | |||||
| Fort Hood | TX | CONUS | Army | |||||
| Fort Bliss | TX | CONUS | Army | |||||
| Dyess AFB | TX | CONUS | USAF | |||||
| USAREC, Nashville Battalion | TN | CONUS | Army | |||||
| Naval Support Activity Mid-South | TN | CONUS | Navy | |||||
| Arnold AFB | TN | CONUS | USAF | |||||
| Ellsworth Air Force Base | SD | CONUS | USAF | |||||
| USCG Base Charleston | SC | CONUS | USCG | |||||
| USAREC, Columbia Recruiting Battalion | SC | CONUS | Army | |||||
| Shaw Air Force Base | SC | CONUS | USAF | |||||
| MCRD Parris Island | SC | CONUS | USMC | |||||
| MCAS Beaufort | SC | CONUS | USMC | |||||
| Joint Base Charleston | SC | CONUS | USAF | |||||
| Fort Jackson | SC | CONUS | Army | |||||
| Naval Station Newport | RI | CONUS | Navy | |||||
| USAREC, Harrisburg Battalion | PA | CONUS | Army | |||||
| Tobyhanna Army Depot | PA | CONUS | Army | |||||
| Defense Logistics Agency at Susquehanna | PA | CONUS | DLA | |||||
| Carlisle Barracks | PA | CONUS | Army | |||||
| USAREC, Portland Battalion | OR | CONUS | Army | |||||
| Vance AFB | OK | CONUS | USAF | |||||
| USAREC, Oklahoma City Battalion | OK | CONUS | Army | |||||
| Tinker AFB | OK | CONUS | USAF | |||||
| McAlester Army Ammunition Plant | OK | CONUS | Army | |||||
| Fort Sill | OK | CONUS | Army | |||||
| Altus AFB | OK | CONUS | USAF | |||||
| Wright-Patterson AFB | OH | CONUS | USAF | |||||
| USCG Base Cleveland | OH | CONUS | USCG | |||||
| USAREC, Columbus Battalion | OH | CONUS | Army | |||||
| USAREC, Cleveland Battalion | OH | CONUS | Army | |||||
| Defense Supply Center Columbus | OH | CONUS | DLA | |||||
| USAREC, Syracuse Battalion | NY | CONUS | Army | |||||
| USAREC, New York City Battalion | NY | CONUS | Army | |||||
| USAREC, Albany Battalion | NY | CONUS | Army | |||||
| United States Military Academy at West Point | NY | CONUS | Army | |||||
| Naval Support Activity Saratoga Springs | NY | CONUS | Navy | |||||
| Fort Hamilton | NY | CONUS | Army | |||||
| Fort Drum | NY | CONUS | Army | |||||
| USAREC, 6th Medical Recruiting Battalion | NV | CONUS | Army | |||||
| Nellis AFB | NV | CONUS | USAF | |||||
| Naval Air Station Fallon | NV | CONUS | Navy | |||||
| Creech AFB | NV | CONUS | USAF | |||||
| U.S. Army Garrison White Sands Missile Range | NM | CONUS | Army | |||||
| Kirtland Air Force Base | NM | CONUS | USAF | |||||
| Holloman AFB | NM | CONUS | USAF | |||||
| Cannon AFB | NM | CONUS | USAF | |||||
| USCG Training Center Cape May | NJ | CONUS | USCG | |||||
| USAREC, Mid-Atlantic Battalion | NJ | CONUS | Army | |||||
| US Army Cadet Command 2nd Brigade | NJ | CONUS | Army | |||||
| Picatinny Arsenal | NJ | CONUS | Army | |||||
| Naval Weapons Station Earle | NJ | CONUS | Navy | |||||
| Joint Base McGuire-Dix-Lakehurst | NJ | CONUS | USAF | |||||
| Offutt AFB | NE | CONUS | USAF | |||||
| Minot AFB | ND | CONUS | USAF | |||||
| Grand Forks AFB | ND | CONUS | USAF | |||||
| USCG Base Elizabeth City | NC | CONUS | USCG | |||||
| USAREC, Raleigh Battalion | NC | CONUS | Army | |||||
| US Army Cadet Command 4th Brigade | NC | CONUS | Army | |||||
| Seymour Johnson AFB | NC | CONUS | USAF | |||||
| Pope Army Airfield | NC | CONUS | USAF | |||||
| MCAS New River | NC | CONUS | USMC | |||||
| MCAS Cherry Point | NC | CONUS | USMC | |||||
| Fort Bragg | NC | CONUS | Army | |||||
| Camp Lejeune | NC | CONUS | USMC | |||||
| Malmstrom Air Force Base | MT | CONUS | USAF | |||||
| Whiteman AFB | MO | CONUS | USAF | |||||
| USAREC, Kansas City Battalion | MO | CONUS | Army | |||||
| Fort Leonard Wood | MO | CONUS | Army | |||||
| USAREC, Minneapolis Battalion | MN | CONUS | Army | |||||
| USAREC, Great Lakes Battalion | MI | CONUS | Army | |||||
| USAG Detroit Arsenal | MI | CONUS | Army | |||||
| Stennis Space Center | MI | CONUS | Navy | |||||
| Naval Construction Battalion Center Gulfport | MI | CONUS | Navy | |||||
| Naval Air Station Meridian | MI | CONUS | Navy | |||||
| Keesler AFB | MI | CONUS | USAF | |||||
| Hart-Dole-Inouye Federal Center | MI | CONUS | DLA | |||||
| Columbus AFB | MI | CONUS | USAF | |||||
| USAREC, New England Battalion | ME | CONUS | Army | |||||
| Portsmouth Naval Shipyard | ME | CONUS | Navy | |||||
| USAREC, Baltimore Battalion | MD | CONUS | Army | |||||
| USAREC, 1st Medical Recruiting Battalion | MD | CONUS | Army | |||||
| Naval Support Activity South Potomac (NSF Indian Head) | MD | CONUS | Navy | |||||
| Naval Support Activity Bethesda Home of Walter Reed National Military Medical Center | MD | CONUS | Navy | |||||
| Naval Support Activity Annapolis - U.S. Naval Academy | MD | CONUS | Navy | |||||
| Naval Air Station Patuxent River | MD | CONUS | Navy | |||||
| Joint Base Andrews-Naval Air Facility Washington | MD | CONUS | USAF | |||||
| Fort George G. Meade - Navy | MD | CONUS | Navy | |||||
| Fort George G. Meade | MD | CONUS | Army | |||||
| Fort Detrick | MD | CONUS | Army | |||||
| Aberdeen Proving Ground | MD | CONUS | Army | |||||
| Westover ARB | MA | CONUS | USAF | |||||
| USCG Base Cape Cod | MA | CONUS | USCG | |||||
| USCG Base Boston | MA | CONUS | USCG | |||||
| Natick Soldier Systems Center (NSCC) | MA | CONUS | Army | |||||
| Hanscom AFB | MA | CONUS | USAF | |||||
| Fort Devens | MA | CONUS | Army | |||||
| USCG Base New Orleans | LA | CONUS | USCG | |||||
| USAREC, Baton Rouge Battalion | LA | CONUS | Army | |||||
| Naval Air Station Joint Reserve Base New Orleans | LA | CONUS | Navy | |||||
| Fort Polk | LA | CONUS | Army | |||||
| Barksdale Air Force Base | LA | CONUS | USAF | |||||
| USAREC, 3rd Medical Recruiting Battalion | KY | CONUS | Army | |||||
| US Army Cadet Command Headquarters | KY | CONUS | Army | |||||
| US Army Cadet Command 7th Brigade | KY | CONUS | Army | |||||
| US Army Cadet Command 1st Brigade | KY | CONUS | Army | |||||
| Fort Knox | KY | CONUS | Army | |||||
| Fort Campbell | KY | CONUS | Army | |||||
| McConnell AFB | KS | CONUS | USAF | |||||
| Fort Riley | KS | CONUS | Army | |||||
| Fort Leavenworth | KS | CONUS | Army | |||||
| USAREC, Indianapolis Battalion | IN | CONUS | Army | |||||
| USAREC, Chicago Battalion | IL | CONUS | Army | |||||
| US Army Cadet Command 3rd Brigade | IL | CONUS | Army | |||||
| Scott Air Force Base | IL | CONUS | USAF | |||||
| Rock Island Arsenal | IL | CONUS | Army | |||||
| Naval Support Activity Crane | IL | CONUS | Navy | |||||
| Naval Station Great Lakes | IL | CONUS | Navy | |||||
| Mountain Home AFB | ID | CONUS | USAF | |||||
| USAREC, Atlanta Battalion | GA | CONUS | Army | |||||
| US Army Cadet Command 6th Brigade | GA | CONUS | Army | |||||
| Robins AFB | GA | CONUS | USAF | |||||
| Naval Submarine Base Kings Bay | GA | CONUS | Navy | |||||
| Moody AFB | GA | CONUS | USAF | |||||
| Marine Corps Logistics Base - Albany | GA | CONUS | USMC | |||||
| Hunter Army Airfield | GA | CONUS | Army | |||||
| Fort Stewart | GA | CONUS | Army | |||||
| Fort Gordon | GA | CONUS | Army | |||||
| Fort Benning | GA | CONUS | Army | |||||
| USSOUTHCOM/U.S. Army Garrison-Miami | Florida | CONUS | Army | |||||
| USCG Base Miami Beach | Florida | CONUS | USCG | |||||
| USAREC, Tampa Battalion | Florida | CONUS | Army | |||||
| USAREC, Miami Battalion | Florida | CONUS | Army | |||||
| USAREC, Jacksonville Battalion | Florida | CONUS | Army | |||||
| Tyndall AFB | Florida | CONUS | USAF | |||||
| USCG Base Honolulu | HI | OCONUS / STATE | USCG | |||||
| Patrick AFB | Florida | CONUS | USAF | |||||
| Schofield Barracks/Fort Shafter | HI | OCONUS / STATE | Army | |||||
| Naval Support Activity Panama City | Florida | CONUS | Navy | |||||
| MCB Hawaii | HI | OCONUS / STATE | USMC | |||||
| Naval Support Activity Orlando | Florida | CONUS | Navy | |||||
| Joint Base Pearl Harbor Hickam | HI | OCONUS / STATE | Navy | |||||
| Naval Station Mayport | Florida | CONUS | Navy | |||||
| USCG Base Kodiak | AK | OCONUS / STATE | USCG | |||||
| Naval Air Station Whiting Field | Florida | CONUS | Navy | |||||
| USCG Base Ketchikan | AK | OCONUS / STATE | USCG | |||||
| Naval Air Station Pensacola | Florida | CONUS | Navy | |||||
| USAG Alaska, Wainwright | AK | OCONUS / STATE | Army | |||||
| Naval Air Station Key West | Florida | CONUS | Navy | |||||
| USAG Alaska, Greely | AK | OCONUS / STATE | ||||||
| Naval Air Station Jacksonville | Florida | CONUS | Navy | |||||
| Joint Base Elmendorf - Richardson JBER | AK | OCONUS / STATE | USAF | |||||
| MacDill AFB | Florida | CONUS | USAF | |||||
| Eielson AFB | AK | OCONUS / STATE | Army | USAF | ||||
| Hurlburt Field | Florida | CONUS | USAF | |||||
| RAF Mildenhall | United Kingdom | OCONUS | USAF | |||||
| Eglin AFB | FL | CONUS | USAF | |||||
| RAF Lakenheath | United Kingdom | OCONUS | USAF | |||||
| Dover AFB | DE | CONUS | USAF | |||||
| RAF Croughton, RAF Fairford | United Kingdom | OCONUS | USAF | |||||
| USCG Base National Capital Region | D.C. | CONUS | USCG | |||||
| RAF Alconbury, RAF Molesworth | United Kingdom | OCONUS | USAF | |||||
| Pentagon - Army | D.C. | CONUS | Army | |||||
| Izmir AS | Turkey | OCONUS | USAF | |||||
| Pentagon - Air Force | D.C. | CONUS | USAF | |||||
| Incirlik AB | Turkey | OCONUS | USAF | |||||
| Naval Support Activity Washington | D.C. | CONUS | Navy | |||||
| Naval Station Rota | Spain | OCONUS | Navy | |||||
| Joint Base Anacostia-Bolling | D.C. | CONUS | Navy | |||||
| Moron AB | Spain | OCONUS | USAF | |||||
| Naval Submarine Base New London | CT | CONUS | Navy | |||||
| Singapore Area Coordinator | Singapore | OCONUS | Army | Navy | ||||
| Buckley AFB | Colorado | CONUS | USAF | |||||
| Fort Buchanan | Puerto Rico | OCONUS | ||||||
| USAREC, Denver Battalion | CO | CONUS | Army | |||||
| Stavanger | Norway | OCONUS | USAF | |||||
| USAF Academy | CO | CONUS | USAF | |||||
| Volkel Air Base | Netherlands | OCONUS | USAF | |||||
| Schriever AFB | CO | CONUS | USAF | |||||
| United States Army Garrison Benelux-Schinnen | Netherlands | OCONUS | Army | |||||
| Peterson AFB | CO | CONUS | USAF | |||||
| USAG Yongsan | Korea, Republic Of (South Korea) | OCONUS | Army | |||||
| Fort Carson | CO | CONUS | Army | |||||
| USAG Red Cloud/Casey | Korea, Republic Of (South Korea) | OCONUS | Army | |||||
| Vandenberg AFB | CA | CONUS | USAF | |||||
| USAG Daegu | Korea, Republic Of (South Korea) | OCONUS | Army | |||||
| USCG Los Angeles / Long Beach | CA | CONUS | USCG | |||||
| Osan Air Base | Korea, Republic Of (South Korea) | OCONUS | USAF | |||||
| USCG Base Alameda | CA | CONUS | USCG | |||||
| Kunsan AB | Korea, Republic Of (South Korea) | OCONUS | USAF | |||||
| USAREC, US Army Recruiting Battalion Northern California | CA | CONUS | Army | |||||
| Commander Fleet Activities Chinhae | Korea, Republic Of (South Korea) | OCONUS | Navy | |||||
| USAREC, US Army Battalion Central California | CA | CONUS | Army | |||||
| Camp Humphreys / USAG Humphreys | Korea, Republic Of (South Korea) | OCONUS | Army | |||||
| USAREC, Southern California Battalion | CA | CONUS | Army | |||||
| Yokota AB | Japan | OCONUS | USAF | |||||
| USAREC, Los Angeles Battalion | CA | CONUS | Army | |||||
| USAG Okinawa, Torii Station | Japan | OCONUS | Army | |||||
| Twentynine Palms (MCAGCC) | CA | CONUS | USMC | |||||
| USAG Japan, Zama | Japan | OCONUS | Army | |||||
| Travis Air Force Base | CA | CONUS | USAF | |||||
| Naval Air Facility Atsugi | Japan | OCONUS | Navy | |||||
| Presidio of Monterey (DLI/FLC) | CA | CONUS | Army | |||||
| Misawa AB | Japan | OCONUS | USAF | |||||
| Naval Support Activity Monterey | CA | CONUS | Navy | |||||
| Marine Corps Air Station Iwakuni | Japan | OCONUS | USMC | |||||
| Naval Base Ventura County - Point Mugu/Port Hueneme | CA | CONUS | Navy | |||||
| Kadena AB | Japan | OCONUS | USAF | |||||
| Naval Base San Diego | CA | CONUS | Navy | |||||
| Commander Fleet Activities Yokosuka | Japan | OCONUS | Navy | |||||
| Naval Base Point Loma | CA | CONUS | Navy | |||||
| Commander Fleet Activities Sasebo | Japan | OCONUS | Navy | |||||
| Naval Base Coronado | CA | CONUS | Navy | |||||
| Camp S D Butler (Camp Foster, Kinser, Courtney, Hansen, Schwab and MCAS Futenma) | Japan | OCONUS | USMC | |||||
| Naval Air Weapons Station China Lake | CA | CONUS | Navy | |||||
| USAG Italy-Darby Military Community | Italy | OCONUS | Army | |||||
| Naval Air Station Lemoore | CA | CONUS | Navy | |||||
| USAG Italy | Italy | OCONUS | Army | |||||
| Naval Air Facility El Centro | CA | CONUS | Navy | |||||
| Naval Support Activity Naples Department Gaeta | Italy | OCONUS | Navy | |||||
| MCRD San Diego | CA | CONUS | USMC | |||||
| Naval Support Activity Naples | Italy | OCONUS | Navy | |||||
| MCLB Barstow | CA | CONUS | USMC | |||||
| Naval Air Station Sigonella | Italy | OCONUS | Navy | |||||
| Marine Corps Mountain Warfare Training Center (MWTC) | CA | CONUS | USMC | |||||
| Ghedi Air Base | Italy | OCONUS | USAF | |||||
| Marine Corps Air Station Miramar | CA | CONUS | USMC |
Glossary
- DLA – Defense Logistics Agency
- CONUS – The 48 CONtiguous states and the District of Columbia
- OCONUS – Outside the Continental United States. Alaska and Hawaii are considered OCONUS & overseas.
- Overseas – Any country or place beyond CONUS.
- USAF – United States Air Force
- USCG – United States Coast Guard
- USMC – United States Marine Corps