The Invaders #5 (cover-dated March 1976) featured cameo appearances by fellow Timely characters Miss America, the Patriot, and the Whizzer, who would go on to the Liberty Legion, and the Fin, who would not.

[2] The team was formally assembled and named the following month in Marvel Premiere #29 (April 1976), with additional Timely superheroes the Blue Diamond, Jack Frost, the Red Raven and the Thin Man joining.

The Liberty Legion, indeed, included only two of even the company's secondary tier – the Whizzer and Miss America, who in late-1940s comics were members of Timely's first super-team, the All-Winners Squad.

In the team's modern-day retcon origin, the Liberty Legion was assembled in 1942 by Captain America sidekick Bucky, the only Invaders member to escape a brainwashing trap by the Red Skull.

The Liberteens, whose name is a homophone of "libertine", is a young group of superhumans inspired by the Liberty Legion and formed as part of the Fifty State Initiative of government-sanctioned superhero teams.

In private, the group is shown celebrating victory with debauchery, with the exception of the seemingly straitlaced leader, the Revolutionary, who is revealed to be a Skrull sleeper agent involved in preparations for that shape-shifting alien race's Secret Invasion.