Since the first superheroes debuted in the 1930s, comics have made patriotism a staple of their respective universes. Whether it's the super soldier Captain America or the all-American Shazam, comics make no apologies about heroes who fight for their country. DC in particular was very eager to play up the angle of superheroes who proudly waved the Star-Spangled Banner on the covers of their comics, which was often reflective of the interior story.
Source：https://www.cbr.com/dc-comics-most-patriotic-heroes-ranked/
