The Union flag, known as the Stars and Stripes, symbolized unity and patriotism

https://lorenzoomka633.fairmontdigest.com/posts/civil-war-flag-variations-understanding-regional-differences-and-designs

The Union flag, referred to as the Stars and Stripes, symbolized solidarity and patriotism, providing 13 stripes and a discipline of blue with stars that represented every state inside the union.