Legend of a Leatherneck

With the death of his friend and mentor, Gunnery Sergeant James O'Driscoll is thrown into the ongoing shadow war for control of the American Pantheon. He survives an attack by the forces of darkness before taking up the blade to fight for Lugh, the Celtic God of War. He begins his fight to free Boston from the Dulihan and their dark allies. In a magical repeat of American History, these major battles take place on the USS Constitution, Bunker Hill, and the Dorchester Heights.

Throughout this fight, he has to learn about the magical realm and all of its implications in his life, including having served beside a company of dwarves during one of his tours in Iraq. During these fights, he's nearly killed, as are a few members of his team, making him have to hone his skills to survive.