[3] Teryokhin became commissar of the Kursk Military School in June 1921, and in October transferred to command a company of the 91st Preparatory Courses.

[2] In November, Teryokhin transferred to become a training company commander at the Nizhny Novgorod Infantry School.

[3] In March of that year he took command of the 11th Cavalry Division's 10th Mechanized Regiment in the North Caucasus Military District, and was promoted to major in 1936.

In March 1939, after returning from Spain, he was appointed commander of the 20th Tank Corps in the Transbaikal Military District.

From 9 August to 16 September he led elements of the corps as part of the 1st Army Group in the Battles of Khalkhin Gol.

Teryokhin's tanks captured the heavily fortified heights of Palets, Zelenaya, and Remizov, destroying Japanese bunkers in fighting between 22 and 23 August.

For his "skillful leadership and heroism", Teryokhin received the title Hero of the Soviet Union and the Order of Lenin on 18 November.

On 4 June Teryokhin was promoted to Lieutenant General of Tank Troops, and in the same month he became commander of the 5th Mechanized Corps in the Transbaikal Military District.

Teryokhin graduated from Courses of Improvement for Higher Officers (KUVNAS) at the Military Academy of the General Staff in 1941, and on 11 March of that year took command of the 2nd Red Banner Army of the Far Eastern Front.

[2][3][5][4] For the duration of World War II, Teryokhin remained in the Far East, commanding the 2nd Red Banner Army, which guarded the Manchurian border.

In the surrender ceremony, Japanese Lieutenant General Kitazawa Teijiro handed over his samurai sword to Teryokhin.