 Even prior to the U.S. involvement in World War II after the attack at Pearl Harbor, Hawaii, comic books such as "Captain America Comics" #1 (March 1941) depicted superheroes fighting Adolf Hitler and the Nazis.Golden Age publisher Quality Comics debuted its title "Blackhawk" in 1944; the title was published more or less continuously until the mid-1980s.In the post-World War II era, comic books devoted solely to war stories began appearing and gained popularity in the United States and Canada through the 1950s, the 1960s, and 1970s, i.e.