Winston Churchill was a great leader of the UK and basically stopped hitlers conquer of Europe
Of the choices provided all of them are correct except for "Guam revolted". That had nothing to do with the United States intervening.
Bloodies battle is: battle of Sharpsburgh
I think it's the
Freedom to Assemble Peaceably.
On July 8, 1853, American Commodore Matthew Perry led his four ships into the harbor at Tokyo Bay, seeking to re-establish for the first time in over 200 years regular trade and discourse between Japan and the western world.