Whakaotihia te rerenga e whai ake nei: I te 22 o Hune 1941, te ra tuatahi o te whakaekenga a Tiamana, ka puta nga whakahau mai i te tari matua o te Southwestern Front i raro i a Mikhail Kirponos ki nga ope miihini kia tere haere ki mua. Ko te 9th Mechanized Corps i neke atu i ana waahanga ki te taone o Irkutsk, ki te huarahi o te 14th Panzer Division, i peia ai te 131st Motorized Division mai i te taone. I taua wā, i te tonga o Irkutsk, ka whakamanahia e te 11th Panzer Division
Ko Dubno, he pokapū huarahi nui, ki te iti rawa o te aukati, a ka whakahau a Kirponos i te whakaeke-a-roto tonu ki te whakahoki mai. Ahakoa kei te haere tonu ki te rohe whawhai, i whakahiatohia e te 20th me te 35th nga wehenga o mua i waenga i te 30 me te 40 tanks me te hunga hiko, ka tukuna atu ki mua, ka tapahi i te huarahi Irkutsk-Dubno.