The 19th Marine Regiment was an engineer

Engineer

An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics and ingenuity to develop solutions for technical problems. Engineers design materials, structures, machines and systems while considering the limitations imposed by practicality,...

 regiment

Regiment

A regiment is a major tactical military unit, composed of variable numbers of batteries, squadrons or battalions, commanded by a colonel or lieutenant colonel...

 of the United States Marine Corps

United States Marine Corps

The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

 subordinate to the 3rd Marine Division. It existed from September 1942 until September 1944.

Subordinate units

The regiment consisted of three battalions and a headquarters and service company:

• 1st Battalion, 19th Marines, now 3rd Combat Engineer Battalion
  3rd Combat Engineer Battalion
  3rd Combat Engineer Battalion is a combat engineer battalion of the United States Marine Corps. The unit is based at Marine Corps Air Ground Combat Center Twentynine Palms, California. The battalion began reactivation on 7 October 2007 and continues to build to full mission capability planned...
  
  
• 2nd Battalion, 19th Marines, now Combat Logistics Regiment 3
• 3rd Battalion, 19th Marines, now NMCB 25

The 1st Battalion was an engineer battalion, the 2nd was a pioneer battalion and the 3rd a Naval Construction Battalion.

World War II

Occupation and Defense of Cape Torokina, Bougainville
1 November–15 December 1943

Consolidation of the Northern Solomons
15 December 1943–9 January 1944

Capture and Occupation of Guam
21 July–15 August 1944

See also

• History of the United States Marine Corps
  History of the United States Marine Corps
  The history of the United States Marine Corps began with the founding of the Continental Marines on November 10, 1775 to conduct ship-to-ship fighting, provide shipboard security and discipline enforcement, and assist in landing forces. Its mission evolved with changing military doctrine and...
  
  
• List of United States Marine Corps regiments
• Organization of the United States Marine Corps
  Organization of the United States Marine Corps
  The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy . The most senior Marine officer is the Commandant of the Marine Corps, responsible for organizing, recruiting, training, and equipping the Marine Corps so that it is ready for...