1st Raider Battalion
1st Raider Battalion (designated on 16 February 1942) was commanded by Lieutenant Colonel Merritt A. Edson.
• Assault landing on Tulagi, Solomon Islands (7-9 August 1942)
• A, B and C Companies raid Japanese supply base, Tasimboko, Guadalcanal (8th September 1942)
• Battle of Edson's ridge (12-14 September 1942)
• 1st Battle of Matanikau River (26-28 September 1942)
• 2nd Battle of Matanikau River (8 October 1942)
• Landing at Rice Anchorage, New Georgia (5 July 1943)
• Battle of Bairoko Harbour, New Georgia (20 July 1943)
1st February 1944, 1st Raider Battalion designated as the 1st Battalion, 4th Marines