Not at all a bad national anthem you've got there, especially if people have the courage to sing the high notes, or a harmony if they can't make the actual note.

It needs to be understood in its historical context, not as the song of a massive triumphalist world power, but of a small nation, holding on in face of imminent defeat. "The rockets' red glare, the bombs bursting in air" aren't being fired by the US forces, but by the British. "Shock and Awe" sort of thing, but with the targets refusing to be shocked and awed.

And the unsung verses make that a bit clearer.