Sergeant First Class Wade Harlan has spent nineteen years teaching other men to fight. On a cold night above the Euphrates, something comes down out of the sky and takes him and four of his teammates.
They wake up in orbit with a warning. An empire called the Accord has found Earth, and it's already on the way.
Now a team of Green Berets has to do the only thing they know how to do. They'll go into somebody else's war on a world under a red sun, live among the people fighting it, and teach them how to win. The longer they stay, the more Harlan suspects nobody has told them the whole truth.
Force Multiplier is the first book in a grounded military science fiction series about the quiet professionals who teach others to fight.