But you didn't withdraw your forces to a better position, Westmoreland simply didn't get his troops because of how detrimental the Tet Offensive was to the US and LBJ's administration.
The US simply got ousted by a Zurg Rush.
No, It didn't.
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Oh look it's this retard.
We retreated all the way back with our tails between our legs across an ocean to our home country.
We lost.