Kammala wannan jumla: Bayan yarjejeniyar Ribbentrop-Molotov ta watan Satumbar 1939 da Jamusanci-Soviet
Zamanin Poland, yawancin 'yan gudun hijirar Yahudawa daga tsakiyar da yammacin Poland sun zauna a Olyka a cikin kaka na 1939, kamar yadda' yan gudun hijirar Yahudawa 60 daga Czechoslovakia suka yi. An tilasta wa ƙungiyoyi da cibiyoyi na Yahudawa su rushe. Bayan mamayewar Jamus ta Ukraine a watan Yunin 1941, a matsayin wani ɓangare na Operation Barbarossa, Sojoji na 6 na Jamus sun shiga Olyka, sun lalata gidaje, sun kashe Yahudawa 100, kuma sun riƙe sauran Yahudawa a cikin wani ghetto. Kimanin yahudawa 150 ne aka kwashe zuwa gabas; yawancin yahudawa sun kasance a cikin ghetto. Yahudawa da ba Yahudawa ba Ukrainians sun ci gaba da cinikin kayayyaki da abinci a ciki da kewaye da ghetto; misali, wani Bayahude na ghetto na Olyka ya yi musayar gidansa don kilogiram goma sha shida na rye saboda yunwa. A matsayin wani ɓangare na aikin Einsatzgruppen na watan Agusta 1941, an kashe yahudawa 720, gami da Rabbi Alter Yosef Dovid Landa, a Fadar Olyka da kuma a makabartar yahudawa ta garin zuwa.