Prizewinning historian Ruth Harris offers the first in-depth history of both sides in the 1894 Dreyfus Affair, showing how complex interlocking influences--tensions within the military, the clashing demands of justice and nationalism, and a tangled web of friendships and family connections--shaped both the coalition working to free Jewish officer Alfred Dreyfus and the formidable alliances seeking to protect the reputation of the army that had convicted him.