南ロシア軍
On 20 February 1920, General Grigory Semyonov appointed him commander of the Russian eastern regions. From 5 to 6 March 1920, he successfully withdrew his forces from the area around Krasnoyarsk. But by May 1920, Wojciechowski was seconded to the Crimea to establish a connection with the Armed Forces of South Russia, becoming the Army Reserve of General Wrangel. In November 1920, together with his troops he was evacuated to Constantinople, and then moved to Czechoslovakia.