The Justice Society of America is the oldest and longest lasting organization of super-heroes in history, and one of the greatest.
In November 1940 a British secret agent acting on behalf of President Franklin Delano Roosevelt asked the Crimson Avenger, Flash and Green Lantern to go on a secret mission to Scotland. There the three heroes fought Nazi forces who had established a base in Scotland to support a planned German invasion of Great Britain. The heroes were captured and were brought before Adolf Hitler in Berlin. However, Doctor Fate and Hourman, who had also been asked to serve on this mission, arrived in time to prevent the three heroes' deaths. All five super-heroes then pursued Valkyries whom Hitler had summoned to attack Britain.
Then Hitler ordered his naval invasion of England to begin. Doctor Fate magically brought Atom, Hawkman, Sandman and Spectre to England, where they defeated the invading forces. The nine super-heroes then joined forces against the Valkyries, whom they pursued to Washington, D.C.
Meanwhile, Hitler had sent an advanced bomber plane to attack Washington, but it was destroyed by Commander Steel. Together, Commander Steel and the Atom thwarted the Valkyrie leader’s attempt to assassinate President Roosevelt. The Valkyries returned to Valhalla, their mission for Hitler having failed.
Roosevelt told the ten assembled super-heroes that he wished they could continue as a team. Commander Steel suggested the name for the team, and the Justice Society of America held it’s first meeting on November 22, 1940.
Until more recent times, Commander Steel and the Crimson Avenger acted only as honorary members. The Flash was the first JSA chairman, but he soon stepped down to honorary membership and was succeeded as chairman by Green Lantern. Johnny Thunder joined the Society in Flash’s place.
Green Lantern stepped down to honorary membership, and Hourman left the Society. They were succeeded by Doctor Mid-Nite and Starman.
In December 1941 the JSA disbanded, and several of the members joined the armed forces in their secret identities. However, only a few weeks later, the Justice Society members returned to civilian life and regrouped under the name of Freedom Force with several other U.S. sanctioned heroes, to take orders during the war from the U.S. War Department. Phantom Lady, a member of Freedom Force who was also secretly Starman's cousin, remained with the JSA when it reformed in 1943.
In 1944 and 1945 Doctor Fate, the Sandman, the Spectre and Starman all left the JSA for differing reasons. Wildcat and Mr. Terrific joined the JSA for one case, and the Flash and Green Lantern returned to active membership. In 1948, Johnny Thunder left the Society and was replaced by Liberty Belle.
In early 1951, the head of a group called Eliminations, Inc. lured the JSA members to a satellite in outer space, where he tried unsuccessfully to kill them. The JSA captured the man, who proved to be an agent of a foreign power. The Justice Society was then subpoenaed to appear before the Joint Congressional Un-American Activities Committee, headed by Senator O’Fallon, whose members wrongly suspected that the JSA was in league with the captured spy. When O’Fallon demanded the Justice Society members reveal their secret identities if they wanted to be considered "good Americans," the JSA members refused and went into retirement.
Commander Steel eventually did comply with the government and joined the Freedom Fighters. Crimson Avenger was killed in action shortly after the hearing. The Voice summoned Spectre and Dr. Fate for an undisclosed purpose and they have not been seen since.
When a government group, Task Force X, was formed to arrest any masked heroes, the remaining JSA members came together once more and voted unanimously to fake their own deaths to protect their friends and family.
Making one last public appearance together the plan was compromised when Task Force X captured Johnny Thunder. Seeing there was no other alternative, he had his Thunderbolt remove the JSA members from reality and ordered him to leave Johnny and never to return until hope for a brighter future was assured. One effect of this was that everyone except Johnny forgot the JSA had ever existed.
Unknown to Johnny, the Thunderbolt now resides with his great-grandson, Jakeem, patiently awaiting orders to bring the JSA back to reclaim their status as the original super-hero team and continue their fight for justice and liberty.
Members of the Justice Society, other than Johnny Thunder, at their last meeting (and currently in limbo): Atom, Dr. Mid-Nite, Flash, Green Lantern, Hawkman, Hourman, Liberty Belle, Mr. Terrific, Phantom Lady, Sandman, Starman and Wildcat.
Also present was Hawkgirl, who was sent to limbo with Hawkman.
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Notes:
I swapped the following:
Crimson Avenger for Batman.
Commander Steel for Superman.
Phantom Lady for Wonder Woman.
Liberty Belle for Black Canary.
And I removed the All-Star Squadron entirely since there would now be far fewer heroes.
With Freedom Force being a smaller US sanctioned version of All-Star Squadron, that stands in for the JSA's time as the Justice Battalion, giving Phantom Lady the perfect means to swap teams and take Wonder Woman's place when the JSA reforms.
And her place in Freedom Force would then be taken by Miss America.
In addition, Wing would also take Robin's place.
Also, since they joined the JSA after 1951, this would in effect remove Power Girl and Huntress from the JSA, seeing that there was no Superman, and Huntress has found more success as Helena Bertinelli in recent years.
The current Earth-2 would be destroyed and Power Girl would come to Earth-0 as the lone survivor.
Maybe after some time, Stargirl, Black Canary, Power Girl and the Helena Bertinelli Huntress could join the newly returned JSA.
I had Steel and Crimson Avenger left in the past to keep the final line-up as close to the iconic team as possible. Phantom Lady could have stayed in the past, as well, choosing to move and change her name before their last meeting took place.