Kammala wannan jumlar: A lokacin mamayewar Jamus a Poland, wanda ya fara Yaƙin Duniya na II, a ranar 13 ga Satumba, 1939, Leżajsk ya kama Wehrmacht. Bayan haka, "Einsatzgruppe I" na Jamus ya shiga garin don aikata laifuka daban-daban a kan jama'a. A ranar 3 ga Nuwamba, 1939, 'yan sandan tsaron Jamus sun gudanar da kame-kame da yawa na' yan Poland na gida a matsayin wani ɓangare na "Intelligenzaktion". Daga nan sai aka tsare 'yan Poland a kurkuku na gida ko kuma aka kashe su a makabartar gida. Daga cikin mutanen Poland da aka kashe akwai malamai, daraktocin makarantu, firistoci da jami'an soja. 'Yan Poland daga Leżajsk suma suna cikin wadanda aka kashe a cikin babban kisan gillar Katyn, wanda' yan Rasha suka aikata a watan Afrilu da Mayu na 1940. A lokacin da
A lokacin da Jamus ke mamaye yankin, rundunar sojin cikin gida ta yi aiki sosai a yankin. Tun daga watan Mayu na 1940, an rarraba jaridar Poland ta karkashin kasa "Odwet" a Leżajsk ta ƙungiyar juriya ta Poland. A ranar 28 ga Mayu, 1943, Jamusawa sun harbe mazauna garin 43. Leżajsk ya kama shi da rundunar sojan ƙasa a ranar 27 ga Yuli, 1944.