Even though the increase of forces north of the demilitarized zone and movement of tank battalions through Laos and Cambodia was known, it was brushed off by military leaders as insignificant and an impending invasion as “not possible” (Andrade 62). The Southern commander of I Corps was so confident in this assessment that no preparations were made to stave off an attack, and no air support was on hand during a planned rotation of two of the 3rd ARVN’s regiments that inconveniently took place during the early days of April. Yet invade the North did, with startling triumphs in the first couple weeks. In a three-pronged attack, the North Vietnamese army overran the defences around Quang Tri, Kontum, and An Loc. To prevent the complete loss of the cities, Nguyen Van Thieu “was forced to commit most of his reserves to defend the threatened towns” and in doing so allowed “the NLF to take the offensive in the Mekong delta and in the heavily populated regions around Saigon” (Herring
Even though the increase of forces north of the demilitarized zone and movement of tank battalions through Laos and Cambodia was known, it was brushed off by military leaders as insignificant and an impending invasion as “not possible” (Andrade 62). The Southern commander of I Corps was so confident in this assessment that no preparations were made to stave off an attack, and no air support was on hand during a planned rotation of two of the 3rd ARVN’s regiments that inconveniently took place during the early days of April. Yet invade the North did, with startling triumphs in the first couple weeks. In a three-pronged attack, the North Vietnamese army overran the defences around Quang Tri, Kontum, and An Loc. To prevent the complete loss of the cities, Nguyen Van Thieu “was forced to commit most of his reserves to defend the threatened towns” and in doing so allowed “the NLF to take the offensive in the Mekong delta and in the heavily populated regions around Saigon” (Herring