who was the highest ranking officer killed in vietnam
Harold J. Greene At the rank of major general, Greene was the highest-ranking American service member killed by hostile action since Lieutenant General Timothy J. Maude was killed in the September 11 attacks, and the highest-ranking service member killed on foreign soil during a war since Rear Admiral Rembrandt Cecil Robinson was killed during the Vietnam War in May 1972.[12][13] To date, Greene is also the highest ranking American officer to be killed in combat in the ongoing Global War on Terrorism.[14]
Vietnam War Beginning in 1970, American troops were withdrawn from border areas where most of the fighting took place, instead redeployed along the coast and interior, and US casualties in 1970 were less than half of 1969 casualties after being relegated to less active combat.[285] At the same time that US forces were deployed, the Army of the Republic of Vietnam took over combat operations throughout the country, with casualties doubled US casualties in 1969, and more than tripled US ones in 1970.[286] The post-Tet environment saw a rise in membership in Regional Force and Popular Force militias, now more capable of providing village security which the Americans could not under Westmoreland.[287] In 1970 Nixon announced the withdrawal of an additional 150,000 American troops, reducing the number of Americans to 265,500.[285] By 1970 the Viet Cong forces were no-longer southern-majority, and nearly 70% of units were northerners.[288] Between 1969 to 1971 the Viet Cong and some PAVN units had reverted to small unit tactics typical of 1967 and prior instead of nation-wide grand offensives.[267] In 1971 Australia and New Zealand withdrew their soldiers and U.S. troop count was further reduced to 196,700, with a deadline to remove another 45,000 troops by February 1972. The United States also reduced support troops and in March 1971 the 5th Special Forces Group, the first American unit deployed to South Vietnam, withdrew to Fort Bragg, North Carolina.[289] [A 4]