Tuhia te haere tonu mo tenei waahanga - I te Oketopa 1922, i uru a Koptsov ki te 46th Machine Gun Course i Stavropol me Vladikavkaz. I muri mai ka nekehia ia ki te United Higher Military School i whakaingoatia mo te Central Executive Committee i Moscow. I te 1925, ka noho a Koptsov hei mema o te Rōpū Communist o te Soviet Union. I puta ia i te kura i te tau 1926. I te marama o Akuhata o taua tau, i riro a Koptsov i te rangatira o tetahi roopu o te 49th Rifle Regiment, he waahanga o te 17th Rifle Division i Nizhny Novgorod. I waenga i te Poutu-te-rangi 1927 me te Mahuru 1928, i mahi ia hei kaiako rangatira mo te whakangungu mo te whakangungu i mua o te whakaurunga i te Tari Whakauru a Bronnitsy. Katahi a Koptsov ka uru ki tetahi akoranga whakangungu hoia me te torangapu mo te tau kotahi i Moscow, i puta mai ia i te Mahuru 1929, i muri mai ka noho ia hei rangatira mo te roopu i te 3rd Verkhneudinsk Rifle Regiment o te 1st Pacific Rifle Division i roto i te Special Red Banner Far Eastern Army. I whawhai a Koptsov i te pakanga Sino-Soviet o 1929
i a ia e mahi ana ki te wehenga. I te tau 1931 ka mutu a Koptsov i nga Akoranga Whakapaipai a Leningrad mo nga Kaihauturu o te ope Whero. I riro ia hei kamupene, katahi ka riro ia hei rangatira o te ope taua i te 1st Tank Regiment o te Rohe hoia o Belorussian.