''OK, Joe!'' the American lieutenant calls out to his driver. He hops into his jeep and heads out through French countryside just liberated from the Nazis. With him is the narrator of this novel, Louis, a Frenchman engaged by the American Army as an interpreter. Louis serves a group of American officers charged with bringing GIs to account for crimes - including rape and murder - against French citizens. The friendly banter of the American soldiers and the beautiful Breton landscape stand in contrast to Louis''s task and his growing awareness of the moral failings of the Americans sent to liberate France. For not only must Louis translate the accounts of horrific crimes, he comes to realize that the accused men are almost all African American. Based on diaries that the author kept during his service as a translator for the US Army in the aftermath of D-Day, OK, Joe follows Louis and the Americans as they negotiate with witnesses, investigate the crimes, and stage the courts-martial. Guil