Ka cika wannan jumlar: Rebane ya yi aiki a matsayin sojan Estonia har sai da sojojin Soviet suka mamaye ƙasar a shekara ta 1940. Soviets sun rushe kuma sun mamaye yawancin Sojojin Estonia kuma sun kama kuma sun kashe dukkan manyan kwamandojin Estonia. Yawancin ƙananan jami'ai, kamar Rebane, an sallame su saboda rashin "amincin siyasa" kuma ana iya fitar da su. A wani lokaci, Rebane ya yi aiki a gine-gine, sai ya gudu zuwa cikin gandun daji lokacin da Soviets suka fara
yawan fitarwa a 1941. Ya kafa kuma ya jagoranci ƙungiyar 'yan uwan Forest Brothers da ke adawa da Soviet a Virumaa (Arewacin Estonia) a watan Mayu 1941.