On 17 March the Army of the Republic of Vietnam (ARVN) 1st Division had killed more than 50 soldiers of the Viet Cong 804th Battalion in the area south of the district capital of Phong Điền. The ARVN command requested the Marines to mount an operation 8km north of Phong Điền. The operation plan called for Companies A and B of the 1st Battalion 4th Marines to be landed by helicopters north and south of Route 597 and then move 4km southeast to sweep the hamlets of Ap Phu An and Ap Tay Hoang which were believed to be held by the Viet Cong 802nd Battalion. The 2nd Battalion 1st Marines would reinforce if the enemy was engaged. The operation was supposed to be launched on 19 March but bad weather forced a postponement to 20 March.
The landing of the 1/4 Marines was delayed for 4 hours due to fog, by 10:15 the helicopters of HMM-163 were over the landing zones but were met with anti-aircraft fire. Due to low cloud air support was unavailable, but artillery fire from the 4th Battalion, 12th Marines at Phong Điền softened up the landing zones and the Marines started landing by 12:55. As the Marines began to move out from Landing Zone Robin Company B moved into a minefield around the hamlet of Ap Chinh An 800km from Landing Zone Robin wounding 1 Marine. The Marines attempted to take the hamlet but found that the Viet Cong had fortified the entire hamlet with bunkers and barbed wire. The Marines withdrew to allow air, artillery and naval gunfire support to hit the Viet Cong positions. At 16:49 Company E was landed to reinforce the Marines but by the evening the attack was halted, the Marines had suffered 9 dead and 41 wounded.:67
Marine artillery bombarded the Viet Cong positions while dense fog delayed planned airstrikes. The 1/4 Marines captured Ap Chinh An with minimal opposition as the Viet Cong had abandoned their positions during the night. 2/1 Marines was landed at Landing Zone Duck 3km west of LZ Robin at 11:15 encountering no resistance. The operation continued for the next 2 days with no further engagements.:67
Operation Oregon concluded on 23 March, the Marines had suffered 11 dead and 45 wounded and claiming that the Vietcong 48 killed and 8 captured.:69
2nd Battalion, 1st Marines (2/1) is an infantry battalion in the United States Marine Corps based out of beautiful Camp Horno on Marine Corps Base Camp Pendleton, California. Nicknamed "The Professionals," the battalion consists of approximately 1,200 Marines and sailors. Normally they fall under the command of 1st Marine Regiment and the 1st Marine Division.Carl Ferdinand Pfeifer
Carl Ferdinand Pfeifer (December 18, 1915 – May 12, 2001) was an officer in the United States Navy and naval aide to Presidents Harry S. Truman and Dwight D. Eisenhower.
A native of Springfield, Ohio, he would marry twice. His first marriage, to Dorothy Dowling, ended in divorce. He was married to Mary Louis Whitmore for the rest of his life. He is buried at Arlington National Cemetery.List of allied military operations of the Vietnam War (1966)
This article is a list of known military operations of the Vietnam War in 1966, conducted by the armed forces of the Republic of Vietnam, the United States and their allies.List of allied military operations of the Vietnam War (1967)
This article is a list of known military operations of the Vietnam War in 1967, conducted by the armed forces of the Republic of Vietnam, the United States and their allies.List of allied military operations of the Vietnam War (M–S)
This article is a list of known military operations of the Vietnam War, a war fought by the United States to try to stop communism in Southeast Asia, conducted by the armed forces of the Republic of Vietnam, the United States and allies consisting of Australia, New Zealand, Thailand, South Korea, and the Philippines. This is not a complete list. Operations are currently listed alphabetically, but are being progressively reorganised as a chronology.Operation Jay
Operation Jay was a U.S. Marine Corps and Army of the Republic of Vietnam (ARVN) search and destroy operation on the Street Without Joy, northern Thừa Thiên Province, lasting from 25 June to 2 July 1966.Oregon (sidewheeler 1852)
Oregon was a side-wheel driven steamboat that operated on the Willamette River in the state of Oregon from 1852 to 1854. The steamer was not economically successful and became a total loss by sinking after a short career.USS Whitfield County (LST-1169)
USS Whitfield County (LST-1169), previously USS LST-1169, was a United States Navy landing ship tank (LST) in commission from 1954 to 1973 which saw service in the Atlantic, Caribbean, and Pacific and saw action in the Vietnam War.
Easter Offensive (1972)
Post-Paris Peace Accords (1973–1974)