Plenty of US Servicemen of Irish descent fought in the war, but Ireland did not fight in the Vietnam War.
North Vietnam (capital was Hanoi).
US Civil War & Vietnam War.
Washington was at war with Hanoi.
To stop communist aggession.
To fight communism; part of the cold war.
North Vietnam=Air War South Vietnam=Ground & Riverine War
Because the US soldierswere not trained to fight in the Jungle
Approximately 2,594,000 US servicemen served in the Vietnam War.
Since US citizens were drafted to fight the war; it had a negative impact.
{| |- | The US involvement in Vietnam began in the 60's. The French had been involved in the war for a long time. Vietnam War went forward for a decade. |}
If you were drafted to fight the war; you might not be happy about it.