Following that Tormasov commanded the Dolmatsky Hussars, on the base of which he formed and led the Aleksandrian light cavalry regiment with the rank of colonel.

In 1788–1791 he took part in the Russo-Turkish War, serving at the Siege of Ochakov and the Danube river raids, and was promoted to major general on 21 March 1791.

In 1792 and 1794 he [in general] successfully acted against the Polish–Lithuanian Commonwealth during the Polish–Russian War of 1792 and Kościuszko Uprising, being at Maciejowice[1] and commanding a column under Suvorov in the assault on Praga.

[2] Advancing North against Jean Reynier in mid July, he overwhelmed Klengel's Saxon brigade at Kobryn 27th, marking the first Russian victory in the campaign.

Defeated in turn by Reynier and Schwarzenberg at Gorodetschna (Podobna, Prujany) 12 August, he then withdrew to Ratno to join with the corps of Pavel Chichagov, meeting him on the Styr River 18 September.

Ordered to envelop the Grande Armée at Liady, he was however recalled to the main army by Kutusov after being repulsed at the 2nd Battle of Krasnoe 15 November.