Kammala jumla mai zuwa: Tare da shigar da Amurka a cikin Yaƙin Duniya na I, an tattara Rattner don shiga sashin ɓoyewa na Sojojin Amurka ta kwamandan wannan rukunin, Homer Saint-Gaudens, ɗan mai sassaka Augustus Saint-Gaudens (Behrens 2009). An tura shi zuwa Faransa, inda aka "inganta shi a matsayin sajan, aka sanya shi da alhakin binciken camouflage, kuma ya yi aiki a gaba a Yaƙin na biyu na Marne, Château-Thierry,
Belleau Wood, kuma a kan Hindenberg Line. Ya sami mummunan rauni na baya wanda ya dame shi har tsawon rayuwarsa" (Culkin 1980).