Enchmen rejoined the Red Army with the rank of Senior Politruk, after the USSR was invaded by Germany. However he was discharged in 1942 for health reasons. On January 16, 1943 he was given the position of a senior scientist at the Biological Section of the Academy of Sciences of the USSR, and on October 13, 1948 he was transferred to the Biophysical Section of the Pavlov Institute of Physiology.