Fuller wuxuu hogaamiyay qeybta 41aad ee Caga-wadayaasha ee weeraradii Salamaua, Hollandia, iyo
Biyaak. Biak, difaaca adag ee difaacayaasha Japan ee si fiican loo qoday ayaa fashiliyay isku daygiisa inuu si dhakhso leh u xaqiijiyo jasiiradda. Isagoo ka soo horjeeda baahida Jeneraal Douglas MacArthur ee ah in jasiiradda si dhakhso leh loo sugo, Fuller wuxuu is arkay isaga oo lagu beddelay taliska Biak Lieutenant General Robert L. Eichelberger, oo ah fasalka West Point. Fuller ayaa markaa codsaday in laga fududeeyo amarkiisa, isagoo noqday taliyaha kaliya ee qeybta ah ee laga fududeeyo ololaha Galbeedka New Guinea.