Bottom line, we didn't have an ally (South Vietnam) willing to make the sacrifices for victory. Many of the ARVN generals and officers looked upon the war as a way to make an easy buck. Sorry, without a credible ally, the war was lost from the get-go.
Bottom line, we didn't have an ally (South Vietnam) willing to make the sacrifices for victory.
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We had an ally, however, that went down the drain when John Kennedy began assassinating South Vietamese leadership.