The North won the war in April '75
Declaration of Independence of Vietnam happened in 1945.
Gulf of Tonkin Resolution
America's last declaration of war was on 11 December 1941.
Because that implied total war (using nukes).
He quoted from the Declaration of Independance (Thomas Jefferson).
i beleive it was the war of 1812. and the vietnam war.
There most likely wasn't a declaration of independence; just a war to remove France. But if there was a document depicting such a "declaration..."; then the Geneva Agreement signed in 1954/55 (ending the 1st Indochina War/aka French Indochina War) was it.
The president was able to use force in Vietnam without a declaration due to the Gulf of Tonkin Resolution. This resolution, passed by Congress in 1964, granted President Lyndon B. Johnson authority to take any necessary measures to repel armed attacks against U.S. forces and to prevent further aggression. This effectively gave the president the power to escalate military involvement in Vietnam without an official declaration of war.
The Congress of the United States authorized Johnson to use "military force" in order to defend Vietnam. This was done with the Gulf of Tonkin Resolution. It was not a formal declaration of war.
World War 1 , two Korean Wars, and the Vietnam conflict are examples of undeclared wars. The US went to war without a Declaration of War from Congress.
The US couldn't declare a war in Vietnam, that would've implied total war. Total war meant deploying atomic weapons...that would've caused WWIII. The whole purpose of the cold war was to avoid an atomic war...Vietnam was a fuse that could have led to an atomic explosion...a fuse that world leaders wanted to ensure didn't detonate.
The Gulf of Tonkin Resolution.