We were getting pounded by the Brits.....and they were all desperate to know whether the flag was still there....would we make it as nation.
We forget how close we came to being defeated in the War of 1812.
For example, Washington DC would have been completely burned and occupied if not for a freak storm, maybe a hurricane, but it didn't hit the southern states, that literally descended and blew the Brits away. They fled the storm, not us.