Nyora kupfuurira kweiyi ndima - Muna 1921, Sadeh akanga ari mutungamiriri weHaganah (Dziviriro) muJerusarema. Mukati memhirizhonga ya 1929
akatora rutivi muhondo achidzivirira Haifa. Pakatanga kumukira kwevaArab muPalestine muna 1936-1939, Sadeh akatanga Nodedet ("Wandering Troop" kana "Patrol Unit") muJerusalem, iyo yakatarisana nemaArabu mumisha yavo nenzvimbo. Akarayira kuti mauto ake "abve munzvimbo dzairwiwa" otanga kurwisa.