June 14 is Flag Day in the USA, commemorating the date in 1777 when the flag was adopted by the Second Continental Congress. (I know this only because Wikipedia tells me so . . . )
There is an Iwo Jima monument in New Britain. It honors a long, difficult campaign in World Warr II on an island off Japan. The loss of life on both sides was tremendous. This statue is based on a famous photograph of the American flag being raised after the Americans captured Mount Suribachi on Iwo Jima.