The British troops had marched in time with their drummers andアメリカ人にとっては「いいくに作ろう鎌倉幕府」レベルの常識なのかな。
pipers. The musicians had played a song called "Yankee Doodle."
The British invented the song to insult the Americans. They said
a Yankee Doodle was a man who did not know how to fight. After
the early battles of the revolution, the Americans said they
were glad to be Yankee Doodles.