During the day Soviet units managed to capture the strategically important village of Ossów, but were repelled in the evening by a Polish counter-attack.

The battle was fought as the Red Army forces commanded by Mikhail Tukhachevsky approached the Polish capital of Warsaw and nearby Modlin Fortress.

The village of Ossów lay on a strategically important road leading from Warsaw towards Stanisławów and was considered crucial for both sides of the conflict.

The latter unit was considered elite as it was an all-volunteer body drafted from among the students of various Warsaw-based universities, (hence it was nicknamed the Academic Legion).

During the day Soviet units managed to capture the strategically important village of Ossów, but were repelled in the evening by a Polish counter-attack.