YES, IF: 1. We used Atomic Weapons. OR 2. If we escalated the war into Cambodia and Laos (to destroy/occupy the Ho Chi Minh Trail). OR 3. If the Soviets and Red Chinese stayed out of the war. OR 4. Invaded North Vietnam & the Soviets and Red Chinese stayed out of the war. (Which wouldn't happen; Red China was ready to mobilize at the drop of a hat!). OR 5. A combination of all or part of the above.