In this analysis, eminent historians scrutinize seven popular military stories from the alternate history genre to determine the probability of the events described in each. Answering questions such as Could our atomic bomb policy really have been changed by one faulty screw? What if Napoleon had led the Americans in the Battle of New Orleans? and Would President Lincoln’s assassination during the Gettysburg Address have left the Confederacy as a separate nation? the researchers examine stories by Michael F. Flynn, John Mina, Mike Resnick, Kin Stanley Robinson, William Saunders, and Harry Turtledove, ultimately supporting or debunking the events within.