 Nyorai kupfuurira kweiyi ndima - Pakati paMay 1938 naJune 1941 Pieck akashanda muhofisi yeMoscow yekudhinda yeComintern. Pakuvamba kwa1941, sezvo hurumende yeGermany yakagadzirira kubvarura chibvumirano chayo chokusarwisa neSoviet Union ndokutanga kupinda, zita raArthur Pieck rakawedzerwa kurondedzero chaiyo yeUSSR yeGestapo yevanhu muSoviet Union kuti vatsvwe uye vatariswe sechinhu chinokosha. Pakati pa 8 Chikunguru 1941 na Chivabvu 1945 akashanda semukuru wePolitics Commissioner Oberpolitkommissar uye Kaputeni Hauptmann neCentral Administration Hauptverwaltung yeRed Army. Basa rake, sezvaaimboita kare, raiva rokuparadzira mashoko, iye zvino aishanda pamutsetse wehondo uye, achiwedzera, pakati pevasungwa vehondo veGermany mumisasa yevasungwa. Muna December 1941 akabatanidzwa naWalter Ulbricht uye vaviri vacho vakatumirwa kunoshanda kumusasa wevasungwa vehondo paSpaskij Zavod pedyo neKaraganda muKazakhstan. Muzhizha ra1942 akanga achiita basa rokuparadzira mashoko paCaucasus Front. Kubva pakupera kwaNovember 1942 kusvika muna Ndira 1943 akanga achigadzira pepanhau remutauro wechiGerman Neuste Nachrichten Latest News paStalingrad Front, basa raakapihwa menduru yeOrder yePatriotic War. Mukati ma1943 akaronga kugadzirira kuvhurwa kwe a hrefNational20Committee20for20a20Free20GermanyNational Committee for a Free Germany Nationalkomitee Freies Deutschland NKFD a. Hondo yakaguma, nenzira yapamutemo, muna May 1945. Panguva iyoyo Arthur Pieck akanga adzoka nehondo yeRed mwedzi wakanga wapfuura kune zvakanga zvasara zveBerlin. 