http://www.landscaper.net/timelin.htmexcerpts:
Jan 72 - President Nixon announces the 7th withdrawal: 70,000 troops by 1 May 72 reducing the troop level in Vietnam to 69,000
26 Apr 72 - President Nixon announced the withdrawal of 20,000 more troops
Jun 72 - Nixon announced the withdrawal of 10,000 more troops by September
Aug 72 - Nixon announced the withdrawal of 12,000 more troops
8 Jan 73 - Final stage of peace talks began that would lead to the signing of a Vietnam cease fire on 27 Jan
23 Jan 73 - President Nixon announced an agreement "to end the war and bring peace with honor in Vietnam and S.E. Asia."
27 Jan 73 - Official end of the Vietnam War. Between 27 Jan and 29 Mar 73, a total of 587 military and civilian prisoners were released by the North Vietnamese, and during that same period, 23,500 US troops were withdrawn from South Vietnam
29 Mar 73 - 67 more US P.O.W.'s were freed in Hanoi. The same day, the US withdrew its remaining 2,500 troops from South Vietnam. This date also marked the actual end of military involvement in Vietnam.
(by my math that's 1000 still in-country, but they say "its remaining 2500", so I guess there is round-off error in the other numbers)
The troops were out of VN when the symbolic funding cutoff occurred. All it stopped was further bombing.
10 May 73 - Due to continued bombing of Laos and Cambodia, the House voted (219-188) for the first time to cut-off Indochina funds
31 May 73 - The Senate took strong action prohibiting the use of any funds appropriated by Congress to be used for combat activities in Laos or Cambodia
7 Nov 73 - War Powers Act - Congress dealt President Nixon a stunning setback when it voted to override his veto of legislation limiting presidential powers to commit US forces abroad without congressional approval. Congress, with the Vietnam War and the showdown over continued bombing in Cambodia behind it, was anxious to reassert its role in the conduct of the country's foreign affairs
I want them out SAFELY