The BA-20's performance cross country was very good and it could handle marshy ground well.
From 1936 to 1942 the BA-20 was in use. The BA-20M was used from 1938 to 1942.
The first combat for the BA-20 was against the Japanese at the Battle of Khalkhin Gol in 1939.
Invasion of Poland
BA-20s were used in the invasion of Poland.
BA-20s were used against the Finns in the Russian-Finnish war. The Finns captured some of the BA-20s used against them.
The Germans used many of the BA-20 ZhDs for patrolling the rail lines and anti-partisan duties.