Need to spend some time with your history books. The democrats declared this a ‘police action’. Truman decided he didn’t need a declaration of war. And he was backed up by the democrats in Congress. “If a burglar breaks into your house, you can shoot him without going down to the police station and getting permission,” Sen Tom Connally, D-TX.
Since the conflict was never resolved, it’s been an open action item since 1950.
armistice
to undo the armistice
congress