Kammala jumla mai zuwa: Zundel ya jagoranci rundunar bindigogi a kan Yammacin Yammacin lokacin yakin duniya na, kuma ya kasance jami'in bindigogi na Sojojin Amurka na shida a yankin Kudu maso yammacin Pacific a lokacin yakin duniya na biyu, ya shiga cikin ayyukan da yawa a can. A watan Mayu 1944 ya zama kwamandan rundunar bindigogi na 41st Infantry Division, kuma an yi masa ado don ƙarfin hali a cikin
Yaƙin Biak da Yaƙin Mindanao. Bayan yaƙin ya zama shugaban Rundunar Tsaro ta Tsaro da kwamandan Makarantar ta. Ya yi aiki a Yaƙin Koriya a matsayin Babban Sufeto, Far East Command, da Babban Sufeto, United Nations Command.