▁chairman ▁of ▁the ▁Special ▁Committee ▁of ▁the ▁S TO ▁in ▁providing ▁military ▁prepar ations ▁on ▁rail ways . ▁ ▁Post ▁Revolution ▁In ▁ 1 9 2 0 ▁he ▁represented ▁the ▁Che ka ▁in ▁the ▁Northern ▁C au cas us ▁and ▁served ▁there ▁as ▁the ▁Comm iss ar ▁of ▁the ▁Northern ▁C au cas us ▁Rail ways . ▁In ▁ 1 9 2 0 - 1 9 2 2 ▁was ▁the ▁Che ka ▁pl en ip ot enti ary ▁in ▁Turk est an ▁A SS R , ▁where ▁he ▁also ▁was ▁the ▁local ▁party ▁b ureau ▁member . ▁There ▁he ▁led ▁numerous ▁operations ▁against ▁the ▁anti - B ols he vik ▁form ations ▁of ▁D ut ov , ▁An nen kov , ▁En ver ▁P asha ▁ ▁and ▁D z han uz akov . ▁He ▁returned ▁to ▁Moscow ▁in ▁ 1 9 2 2 ▁and ▁worked ▁as ▁a ▁high - ran king ▁official ▁in ▁the ▁O G PU , ▁Rab kr in , ▁and ▁as ▁the ▁chief ▁of ▁the ▁Eastern ▁department ▁of ▁the ▁GPU ▁( created ▁on ▁June ▁ 2 , ▁ 1 9 2 2 ). ▁ ▁During ▁the ▁Great ▁Pur ge , ▁as ▁a ▁part ▁of ▁the ▁so - called ▁" Lat v ian ▁Operation ", ▁Peters s ▁was ▁arrested ▁and ▁executed ▁by ▁the ▁NK VD ▁on ▁April ▁ 2 5 , ▁ 1 9 3 8 ▁at ▁the ▁Kommun ark a ▁shooting ▁ground . ▁He ▁was ▁post hum ously ▁re h abil itated ▁in ▁ 1 9 5 6 . ▁