True.
Both Canadians and Argentinians ARE Americans.
We didn't have a choice. They each attacked those things. Started a war, too.
The fort was not a U.S. fort at the time. It was occupied by U.S. troops without the permission of the foreign country. It is no different than when Japan bombed Pearl Harbor. The foreign country shot at the troops illegally occupying land owned by the foreign country.
America didn't win any war. America is a continent. The United States won that war. Personally, I'm glad it resolved that way. It meant an end to slavery (at least legally). It could've been handled better by Lincoln and the Republican Party, but that would've taken longer. Slavery was already dying as an institution. The war that Lincoln Confederates started might not have been necessary.
In the end, it's all history now. It really doesn't make sense to rehash it. Lincoln is dead, the Confederates lost, the United States is back together, slavery is ended legally. It's done.