Back in the day there were prisoners of war on both sides. The American prisoners were kept in chains and filth on a British ship stationed about 1000 yards off the shore of Ft. Henry.
Frances Scott Key (a lawyer) arranged a parlay for a possible trade of prisoners of war. He went to the British ship to negotiate and it was agreed a one for one trade of prisoners could be made. Frances told the American prisoners they would be freed this very day.. Unfortunately when Frances went back above board there was an Admiral who greeted him and just about 2 hours away the entire British Navy who the admiral said would shell Ft. Henry until the Fledgling American flag was taken down. He did not care there were women and children in the Fort, all he cared about was lowering the flag and a surrender.
The first video is the American story and the second video is a of a Britt listening to the story