World War II The 23d Marine Regiment was activated on 20 July 1942 at
New River,
North Carolina; was assigned to the 4th Marine Division in February 1943 and relocated during July 1943 to
Camp Pendleton, California. Regiment's first commanding officer was Colonel
Louis R. Jones. During
World War II, the 23d Marines participated in the following campaigns:
Kwajalein,
Saipan,
Tinian, and the
Battle of Iwo Jima. During the fierce fighting which occurred in the
Pacific Theater, four Marines of the 23d Marine Regiment were awarded the
Medal of Honor for valor: •
Richard B. Anderson, 2/23, Kwajalein •
Joseph W. Ozbourn, 1/23, Tinian •
Darrell S. Cole, 1/23, Iwo Jima •
Douglas T. Jacobson, 3/23, Iwo Jima Starting at Kwajalein, the 23d Marines was assigned to land on beaches red 2 & 3 at Roi. That island was taken in a day. Saipan came next with the 23d Marines assigned to blue beaches 1 & 2 with third Battalion
20th Marines as their Shore Party (121st Seabees). Across the strait at Tinian the 23d Marines was the assault reserve landing on beach white 2. The 121st CB was still assigned to them. For the assault on Iwo Jima the 23d Marines was assigned to yellow beaches with 1/23 the left assault Battalion on yellow beach 1. The right assault Battalion 2/23 was on yellow beach 2 and 3/23 was the assault reserve. The 23d Marines did not have a Pioneer Battalion for the assault Shore Party so the Seabees of
Naval Mobile Construction Battalion 133 were task assigned that duty until relieved D-plus 18. The 23d Marines made four assaults during WWII with Seabees as their beach support each time. In October 1945, the regiment was again relocated to Camp Pendleton and was subsequently inactivated on 15 November 1945.
Regimental commanders • Lieutenant Colonel William B. Onley (20 July 1942 - 2 September 1942) • Colonel
Louis R. Jones (3 September 1942 - 15 October 1944) • Colonel
Walter W. Wensinger (16 October 1944 - 9 April 1945) • Lieutenant Colonel Edward J. Dillon (10 April 1945 - 2 May 1945) • Colonel
Leonard B. Cresswell (3 May 1945 - 15 November 1945)
1950s to the 1990s The 23d Marine Regiment was reactivated on 1 February 1966 in Alameda, California and assigned during the same month to the
4th Marine Division, USMCR. 3d Battalion, 23d Marines was activated in Nov 1990 and deployed to Saudi Arabia for Desert Shield. 3/23 was attached to the 8th Marine Regiment of the 2nd Marine Division and deployed along the Kuwaiti/Saudi Arabian border conducting patrolling and security operations. Two days before G-Day, 3/23 attacked into Kuwait at Umm Gudair to secure forward artillery positions for the support of the attack into Kuwait. With this action, 3/23 became the first unit of the 2nd Marine Division to enter combat since World War II. 3/23 continued to advance as part of 8th Marines, fighting actions into Kuwait City when the ceasefire was called. In December 1990, the
2nd Battalion,
1st Battalion, and Headquarters Co. were activated in January 1991 as part of the 23d Marines which were mobilized by Presidential call-up to support
Operation Desert Shield and
Operation Desert Storm. 2d Battalion, 23d Marines responded to the
eruption of Mt. Pinatubo in the Philippine islands in 1991 and provided critical humanitarian relief.
Global War on Terror The 23d Marine Regiment, either in whole or in part, have been activated multiple times including 2003, 2006, 2009, and 2011. In June, 2012, the 23d Marine Regimental Headquarters Company deployed to
Barbados, Caribbean for Tradewinds 2012. ==Unit Awards==