Kammala jumla mai zuwa: Yaƙin ya ci gaba, ya haɗa da Faransa da Jamus, a watan Satumba na 1939: An tsare Schaul a Saint-Jean-de-la-Ruelle kusa da Orléans. Ya shafe 'yan shekaru masu zuwa a cikin sansanonin da aka tsare, ya ƙare a 1943 a sansanin a Djelfa, 'yan daruruwan kilomita a kudancin Algiers. Sansanin tsare a Djelfa ya ƙunshi abokan gaba da gwamnatin haɗin gwiwar Faransa ta gano, waɗanda galibi 'yan Kwaminis ne, yahudawa, da tsoffin membobin Brigade na Internationalasashen Duniya na Yaƙin Spain. A cikin 1943 Schaul ya zama memba na ƙungiyar ma'aikata ta Biritaniya a Aljeriya, bayan da
Sojojin Anglo-Amurka sun mamaye yankin baki daya. A shekara ta 1944 ya sami damar zuwa Tarayyar Soviet, ya isa a watan Nuwamba na wannan shekarar. A nan an yi amfani da shi a matsayin mai koyarwa ga fursunonin Faransa da Japan. Daga nan sai ya yi aiki da Babban Ofishin Gudanarwa na Moscow don Fursunonin Yaƙi, yana aiki a matsayin mai koyarwa a makarantun soja daban-daban, musamman "Makarantar Anti-Fascist 2041" a Talitsa.