res ▁took ▁place ▁on ▁ 2 9 – 3 0 ▁September ▁ 1 9 4 1 , ▁killing ▁approximately ▁ 3 3 , 7 7 1 ▁Jews . ▁The ▁decision ▁to ▁kill ▁all ▁the ▁Jews ▁in ▁Ky iv ▁was ▁made ▁by ▁the ▁military ▁governor ▁General major ▁Kurt ▁E ber hard , ▁the ▁Police ▁Commander ▁for ▁Army ▁Group ▁South , ▁SS - O berg ru ppen führ er ▁Friedrich ▁Je ck eln , ▁and ▁the ▁Einsatz gruppe ▁C ▁Commander ▁Otto ▁Ras ch . ▁Son der k omm ando ▁ 4 a ▁soldiers , ▁along ▁with ▁the ▁aid ▁of ▁the ▁SD ▁and ▁SS ▁Police ▁Batt al ions ▁with ▁the ▁Ukrain ian ▁A ux ili ary ▁Police ▁back ed ▁by ▁the ▁We hr macht ▁carried ▁out ▁the ▁orders . ▁ ▁The ▁mass acre ▁was ▁the ▁largest ▁mass ▁killing ▁under ▁the ▁aus p ices ▁of ▁the ▁Naz i ▁regime ▁and ▁its ▁collabor ators ▁during ▁its ▁campaign ▁against ▁the ▁Soviet ▁Union ▁and ▁has ▁been ▁called ▁" the ▁largest ▁single ▁mass acre ▁in ▁the ▁history ▁of ▁the ▁Hol oca ust " ▁to ▁that ▁particular ▁date , ▁and ▁sur pass ed ▁overall ▁only ▁by ▁the ▁later ▁ 1 9 4 1 ▁Od essa ▁mass acre ▁of ▁more ▁than ▁ 5 0 , 0 0 0 ▁Jews ▁in ▁October ▁ 1 9 4 1 ▁( comm itted ▁by ▁German ▁and ▁Roman ian ▁troops ) ▁and ▁by ▁A ktion ▁Ern te fest ▁of ▁November ▁ 1 9 4 3 ▁in ▁occupied ▁Poland ▁with ▁ 4 2 , 0 0 0 – 4