Rubuta ci gaba don wannan sakin layi - A 1940, sakamakon yarjejeniyar Molotov-Ribbentrop, an tilasta Romania ta ba da
wani ɓangare na yankinta zuwa Tarayyar Soviet, ciki har da Chișinău, inda aka kafa Moldavian SSR. Sabbin hukumomi sun rufe cibiyar Kotsovsky. Cibiyar ta sake buɗewa lokacin da, bayan barkewar Yaƙin Duniya na II, Chișinău ta mallaki sojojin Axis. Kotsovsky ya ci gaba da aikinsa na kimiyya a lokacin yakin duniya na biyu. A wannan lokacin, ya buga aikinsa galibi a cikin mujallolin kimiyya na Jamusawa da Austriya.