No it didn't.
The U.S used no nuclear weapons whatsoever on Vietnam.
None.
Fear that the North Vietnamese would obtain nuclear weapons themselves (from Russia or China) and use them on South Vietnam or even on America.
No, Vietnam was LIMITED to conventional weapons only. A limited war.
Goldwater wanted to use nuclear weapons on Cuba and North Vietnam.
None. No nuclear weapons were used in Viet Nam.
Nuclear weapons were not used in the Vietnam War.
Nuclear weapons were not used during the Vietnam war
No hydrogen bombs were dropped on Vietnam. No nuclear weapons of any kind were used in Vietnam.
Vietnam, for one.
Most definitely. Simply had to invade North Vietnam. If the Soviets or Red China intervened; use nuclear weapons against them. Which is why North Vietnam wasn't invaded.
LBJ and General Westmoreland did discuss the use of nuclear weapons for use in the Vietnam War, but LBJ ultimately instructed his subordinates to drop the matter and not to bring up the issue of nukes again. This issue had also surfaced during the Korean War and General MacArthur got sacked for it (among other reasons). Note: Only Russia (USSR) & Red China on the communist side had atomic weapons during the Vietnam War. Vietnam never agreed not to hit the US with an atomic bomb because 1) Vietnam has never had any nuclear weapons of any type, 2) Vietnam has no delivery system to send such weapons outside its own border.