Landing Zone Crooks

Landing Zone Crooks. It was a United States Marine Corps fire support base established in early 1969 during the Vietnam War. The base was primarily used to support major operations along the Vietnamese Demilitarized Zone and into the strategic A Shau Valley. Its position made it a critical artillery platform and logistical hub for operations against the People's Army of Vietnam and Viet Cong forces infiltrating from Laos.

History

The base was constructed in January 1969 by elements of the 3rd Marine Division as part of the larger Operation Dewey Canyon. This operation was a major thrust into enemy sanctuaries in the Dãy Trường Sơn (Annamite Range). It was named in honor of a fallen Marine, a common practice for such installations. Throughout its active use, it was frequently shelled by North Vietnamese Army artillery and subjected to ground probes, reflecting the intense combat environment of I Corps Tactical Zone. The base was eventually abandoned as part of the broader Vietnamization policy and the drawdown of U.S. forces.

Location and terrain

Situated in western Quảng Trị Province, it occupied a key position near the Laotian border, overlooking critical infiltration routes like the Ho Chi Minh Trail. The terrain consisted of rugged, jungle-covered mountains and deep valleys, typical of the Central Highlands. Its elevation provided a tactical advantage for artillery observation and fire direction, but also made resupply dependent on CH-46 Sea Knight and CH-53 Sea Stallion helicopters from bases like Đông Hà Combat Base and Khe Sanh Combat Base.

Operations and significance

The base's primary role was to provide artillery support for maneuver units operating in remote border areas. Its guns, often from 1st Battalion, 12th Marines, supported numerous operations, including the climactic phase of Operation Dewey Canyon and the later, ill-fated Operation Lam Son 719 conducted by the Army of the Republic of Vietnam. It served as a vital anchor in the defensive network known as the McNamara Line, intended to interdict enemy movement. The ability to project firepower from this location directly impacted battles in the A Shau Valley and the Khe Sanh region.

Units involved

The base was primarily operated by artillery units of the 3rd Marine Division, notably batteries from the 12th Marine Regiment. It was frequently secured by infantry battalions such as the 9th Marines. Support elements included United States Navy Seabees for construction and United States Air Force forward air controllers directing close air support from aircraft like the OV-10 Bronco. Army of the Republic of Vietnam units also operated from or were supported by the base during joint missions.

Legacy and memorials

While the physical base was returned to the jungle, its story is preserved in unit histories of the United States Marine Corps and personal accounts from veterans of the Vietnam War. The site is remembered as a testament to the harsh, remote nature of the border war. Veterans of the 3rd Marine Division and 12th Marines often commemorate their service there during reunions. The broader campaign is documented in archives like the Vietnam Center and Sam Johnson Vietnam Archive and is part of the historical narrative at the National Museum of the Marine Corps.