17th (final) US Campaign Begins Vietnam Ceasefire Campaign (30 March 1972 to 28 March 1973).

The Communist Easter (Spring) Offensive North Vietnam launched the largest offensive since Tet, January 1968. The three-pronged invasion of South Vietnam, consisted of 13 well equipped North Vietnamese Army (NVA) Divisions. Army Of The Republic Of South Vietnam (ARVN) ground forces met for the first time with a NVA force equipped with many first-line Soviet weapons, including a number of new tanks, heavy artillery pieces, anti-aircraft missiles, and anti-tank missiles.

The NVA push would temporarily capture all the territory north of Hue, South Vietnam which encompassed all of Quang Tri Province (the northernmost province of South Vietnam), and the majority of Thua Thien Province on the southern border of Quang Tri Province.

However, the biggest battle was fought in III Corps at An Loc where the ARVN defenders, their families, and the American advisors were surrounded and threatened with annihilation from NVA divisions that attacked from across the nearby Cambodian border.

All along the communist fronts intensive bombardments of U.S. B52 Arc Light missions and close support tactical strikes of American fighter planes destroyed much of the NVA armor and artillery along with their ability to resupply which forced the North Vietnamese troops to retreat in defeat.

B Company began ammunition resupply convoy escorts from Long Binh Post to Lai Khe during the Communist Easter (Spring) Offensive. The number and frequency of the escort duties were regulated by the enemy activity during the offensive and were rotated between all companies.

"NVA tanks, refugees and other problems" CPT David O. Wright, Commanding Officer, B Company, 720th MP Battalion, October 1971 to June 1972.