In the manga, when Mario describes the fighter pilots in Hoover's lineage, he notes that Hoover's father shot down 130 planes with his Messerschmidt during World War II. The manga conspicuously left out the fact that Adolph Kippenburg would have been fighting for Nazi Germany. By extension, depending on how old he was during the Third Reich, Hoover himself might have been a member of the Hitler Jungen as a child.
In the manga, the anti-government forces slaughter a Bedoin camp to punish them for giving succor to deserters. If the anti-government troops are willing to slaughter innocent noncombatants for trivial offenses, what other war crimes have they been committing in the meantime?