Nyorera kupfuurira kweiyi ndima - Mapoka emagandanga akazozivikanwa seBlack Hand ("al-kaff al-aswad"), anti-Zionist uye anti-British kurwira sangano. Pfungwa yeboka rakadaro yairatidzika kuva yakanyatsojeka pashure pemhirizhonga ya1929
. Kubvira pakutanga chaipo, sangano racho rakatanga kupesana. Rimwe boka rinotungamirirwa naAbu Ibrahim al-Kabir rakataura nezvekurwiswa pakarepo kwevarwi veBritain nevaJudha, nepo rimwe boka, rinotungamirirwa naal-Qassam, rakafunga kuti kupandukira nezvombo kwakanga kwapfuura nguva uye kwaigona kufumura gadziriro dzeboka racho. Sekureva kwa Subhi Yasin, shamwari ya al-Qassam, kurwiswa kweboka kuchamhembe kwakaitwa neboka ra Abu Ibrahim vachipokana na al-Qassam, kunyangwe muna 1969, Abu Ibrahim akaramba kupomerwa uku. Hondo yeBlack Hand yakatevera yakatanga nekumukira nekuuraya nhengo nhatu dzeKibbutz Yagur musi wa11 Kubvumbi 1931, kurwiswa kwebhomba kwakakundikana pamisha yechiJudha iri kure muHaifa kutanga kwa1932, uye mashandiro akati wandei akauraya kana kukuvadza nhengo ina dzekuchamhembe kwevaJudha. Mushandirapamwe wacho wakaguma norufu rwababa nomwanakomana vechiJudha muNahalal, kubva pabhomba rakakandirwa mumusha wavo, musi wa22 December 1932.