The 6th Marine Regiment (also referred to as "6th Marines") is an infantry regiment of the United States Marine Corps based at Marine Corps Base Camp Lejeune, North Carolina. The regiment falls under the command of the 2nd Marine Division of the II Marine Expeditionary Force. Its combat history dates back to World War I when they were part of the American Expeditionary Force. They fought in the Pacific Theater in World War II, most notably at the battles of Guadalcanal, Tarawa, Saipan, Tinian and Okinawa. More recently, the regiment has seen combat during the Gulf War and in support of Operation Iraqi Freedom.
Subordinate units
The regiment comprises four (five during war) organic infantry battalions and one headquarters company:
Headquarters Company 6th Marines (HQ/6) 1st Battalion, 6th Marines (1/6) 2nd Battalion, 6th Marines (2/6) 3rd Battalion, 6th Marines (3/6) 1st Battalion, 8th Marines (1/8) 2nd Battalion, 9th Marines (2/9; during wartime only, when activated)
History
World War I
The 6th Marine Regiment was first organized at Marine Corps Base Quantico, Virginia, on 11 July 1917, three months after the American entry into World War I, under the command of Medal of Honor holder Colonel Albertus W. Catlin. The regiment included three battalions: the 1st (74th, 75th, 76th, and 95th Companies), the 2nd (78th, 79th, 80th, and 96th Companies), and the 3rd (82nd, 83rd, 84th, and 97th Companies). Virtually all of the senior officers and staff non-commissioned officers of the 6th Marines were long-service professionals, while most junior officers and all privates were new enlistees. Although the new men were short on experience, they were long on education: Colonel Catlin estimated that 60% of them were college men. Regimental increments arrived in France during late 1917 and early 1918. Upon arrival, the 6th Marines joined the 5th Marine Regiment and the 6th Machine Gun Battalion to form the 4th Brigade, U.S. 2nd Division (Regular), American Expeditionary Force. The early spring was devoted to training under French tutelage. The "Marine" Brigade entered the trenches of the Toulon Sector near Verdun in March 1918, where it suffered its first combat casualties. The regiment had 33 men killed while in the trenches, most lost when the 74th Company billeting area was gassed on 13 April 1918.
The 4th Brigade was ordered to shore up crumbling French lines near Château-Thierry in late May 1918. The 6th Marines took up positions southwest of Belleau Wood, then it was ordered to seize the town of Bouresches and to clear the southern half of Belleau Wood itself on 6 June. These attacks were the beginning of a month-long struggle that eventually became a landmark battle for the U.S. Marine Corps. Colonel Catlin was severely wounded not long after the first waves went over the top; his replacement was Lieutenant Colonel Harry Lee, who would command the regiment for the rest of the war. Gunnery Sergeant Fred W. Stockham voluntarily gave up his own gas mask to a platoonmate and was later awarded a posthumous Medal of Honor for that action. Regimental dentist Weedon Osborne was also awarded a posthumous Medal of Honor. Regimental losses in this sector were 2,143 over 40 days. In recognition of the "brilliant courage, vigor, spirit, and tenacity of the Marines", the French government awarded Marine units at Belleau Wood the Croix de Guerre with Palm and renamed Belleau Wood "Bois de la Brigade de Marine."
The U.S. 2nd Division was attached to the French XX Corps to conduct a counterattack near Soissons in mid-July. The 6th Regiment was held in reserve when the initial assault waves went over the top on 18 July. The next day, the 6th Marine Regiment stepped off, advancing alone from Vierzy toward Tigny, but was stopped short of the objective by intense artillery and machinegun fire. Casualties were extremely heavy, estimated at 50 to 70% in most units. First Lieutenant Clifton B. Cates (a future commandant of the Marine Corps) reported only about two dozen of more than 400 men survived and added "... There is no one on my left, and only a few on my right. I will hold." Regimental losses during the Aisne-Marne Offensive numbered 1,431; 19 July 1918 is the single costliest day of fighting in the history of the 6th Marine Regiment. Two Navy medical personnel attached to the 6th Regiment received Medals of Honor for their actions at Soissons: future admiral Joel T. Boone and corpsman John H. Balch.