Battle of Warsaw (1920)
The battle of Warsaw was fought from August 12–25, 1920 as Red Army forces commanded by Mikhail Tukhachevsky approached the Polish capital of Warsaw and the nearby Modlin Fortress. On August 16, Polish forces commanded by Józef Piłsudski counterattacked from the south, disrupting the enemy's offensive, forcing the Russian forces into a disorganized withdrawal eastward and behind the Neman River. Estimated Russian losses were 10,000 killed, 500 missing, 30,000 wounded, and 66,000 taken prisoner, compared with Polish losses of some 4,500 killed, 10,000 missing, and 22,000 wounded.
Polish Legions in World War I
The commanders of the Legions were consecutively: Gen. Karol Trzaska-Durski (September 1914 – February 1916), Gen. Stanisław Puchalski (until November 1916), Col. Stanisław Szeptycki (until April 1917), and Col. Zygmunt Zieliński (until August 1917). After the war ended the officers of the Polish Legions became the backbone of the Polish Army.
Below is a list of prominent Polish battles against the Imperial Russian Army in 191416, leading to victories in most cases, with notable exceptions especially during the Brusilov Offensive of 1916.