2nd Battalion, 4th Marines
| 2nd Battalion, 4th Marine Regiment | |
|---|---|
2nd Battalion, 4th Marine Regiment insignia | |
| Active | April 1914 – 4 October 1927 18 September 1932 – 6 May 1942 1 February 1944 – February 1946 2 September 1952 – present |
| Allegiance | United States of America |
| Branch | United States Marine Corps |
| Type | Infantry battalion |
| Role | Locate, close with and destroy the enemy by fire and maneuver, or to repel the enemy's assault by fire and close combat. |
| Size | 1,100 |
| Part of | 4th Marine Regiment 1st Marine Division |
| Garrison/HQ | Marine Corps Base Camp Pendleton |
| Nickname(s) | The Magnificent Bastards |
| Motto(s) | "Second to None" |
| Engagements | 'Banana Wars
Operation Sharp Edge |
| Commanders | |
| Current commander | LtCol Patrick C Holland |
| Notable commanders | Roswell Winans Lyle H. Miller Foster LaHue William Weise |
2nd Battalion, 4th Marines (2/4) is an infantry battalion of the United States Marine Corps. The battalion, nicknamed the Magnificent Bastards from the Vietnam War, is based out of Marine Corps Base Camp Pendleton, California and is a part of the 5th Marine Regiment and 1st Marine Division.