I think World War II would count.
We were attacked by Japan and then Hitler declared war on in 3 days later. Most people on Dec 6, 1941 were against war but that changed when we were attacked.
We did not start it. But we did finish it.
Hawaii wasn’t even a U.S. state at the time of World War II, and its status as a territory was only a function of the corporate globalism that has no place in this free, sovereign nation.