The Penitent Warrior. The Covert Militia Campaigns, #1

In 1996, the Dark Warlord Janus forms the Scorpions, and aligns with the world's terrorists, starting in the Middle East and North Africa, and advances to the Chinese and Japanese Red Armies, a rogue breakaway faction of the Provisional Irish Republican Army, the Iron Batons of Europe, the Order of Neo-Nazia, and neo-Soviets, trying to reunite the U. S. S. R., catching the attention of the Pentagon, who establishes every state in America to organize a top-secret militia, of ages starting in middle school to counter strike the growing threat.
Jack Stamper is a thirteen-year-old hard rock musician, in Atlanta, Georgia, struggling with Asperger syndrome, whose girlfriend is murdered by Janus. After recovering, Jack meets the founders of the Covert Militia and agrees to lead their Atlanta Theater, with the members of his band as his main staff. At the same time, the neo-Soviets, have started to succeed in their goal in reforming the U. S.
S. R. and Juliana Lovasky, another young musician, struggling with dyslexia, joins their equivalent of the Covert Militia after losing her boyfriend to Janus. Aware of their progress, the dark lord vows to make their lives at home and in school miserable, by making feel betrayed by their friends and family, and prevent Jack and Juliana from uniting to stop his ultimate goal.