an American adviser recommended it unless the recommendation came in 
the most inconspicuous and subtle of fashions. At one point, the Americans 
tried to spur the South Vietnamese on by assigning them quotas of Viet Cong 
cadres to be captured or killed, but the South Vietnamese either fabricated 
statistics to meet the quotas or ignored them.59
From 1969 to 1971 the invigorated South Vietnamese forces and their 
American allies eliminated the remaining South Vietnamese insurgents by kill-
ing them, capturing them, or driving them to defect through the national am-
nesty program. e war ceased to have a signicant component of insurgency 
by the end of 1971, becoming a purely conventional war between the armed 
forces of North Vietnam and South Vietnam.60 At the end of March 1972, by 
which time President Richard Nixon had completed a phased withdrawal of 
all U.S. ground forces, a whopping fourteen North Vietnamese army divisions 
slashed into South Vietnam in a three-pronged oensive known to Americans 
as the Easter Oensive, to North Vietnamese as the Strategic Oensive, and to 
South Vietnamese as the Summer of Fire. Making liberal use of armor and ar-
tillery, the North Vietnamese overran Quang Tri, the northernmost province 
of South Vietnam, and advanced on two pivotal provincial capitals, Kontum 
and An Loc. Seeing the deciencies of some of the South Vietnamese mili-
tary commanders, President ieu replaced a few key ones with outstanding 
ocers from other commands, and they quickly restored the ghting spirit in 
the South Vietnamese army units. In the next few months, with the support of 
U.S. air and naval power, the South Vietnamese blunted the remaining North 
Vietnamese assaults and drove the invaders from the populous areas they had 
seized. On account of the Saigon government’s control of South Vietnam’s vil-
lages, it alone could rely heavily on villagers for recruits, food, and intelligence, 
which proved to be critical assets during the oensive.
In the end, however, the obliteration of the insurgents did not save South 
Vietnam from defeat. President Nixon withdrew America’s remaining advi-
sory and support personnel from South Vietnam in January 1973 in return for 
North Vietnamese promises to end the ghting and repatriate American pris-
oners of war, while promising President ieu that the United States would 
come to South Vietnam’s assistance if the North Vietnamese launched another 
major oensive. But when 550,000 North Vietnamese army troops attacked 
two years later, Nixon was out of oce because of Watergate, and the U.S. 
Congress prevented his successor, Gerald Ford, from fullling Nixon’s prom-
ise. e Congress also refused to provide South Vietnam with the fuel, equip-