But in connection with the disclosure of the concentration of Russian troops south of Mlawa, Supreme Commander of All German Forces in the East Paul von Hindenburg ordered to strengthen this direction with the forces of the XX Army Corps (37th and 41st Infantry Divisions), the 1st Guards Reserve Division and the 5th Guards Infantry Brigade.

[7] By January 31, 1915, the German troops concentrated six divisions (up to 40,000 men) and 92 batteries with 596 guns, 150 of them heavy and 2 Austrian 30.5-cm mortars, in the breakthrough area.

Accordingly, even knowing exactly or approximately about the enemy’s offensive, the Russian command at all levels could only demand from subordinate troops “to hold their positions at all costs”, the creation of fortified zones of great depth was not practiced.

From 5 o'clock on February 1, Russian troops launched a counterattack, which, despite the introduction of the 59th Infantry and 13th Siberian Rifle Divisions into battle, was unsuccessful.

By the night of February 4, the position of the Russian VI Army Corps was partially restored, the village of Wola Szydłowska was occupied, but the main strongholds could not be recaptured from the Germans.

All corps were involved in the offensive; as a result, at Borzymów and Witkowice, the Germans was pushed back, four machine guns were captured from him (6th Siberian Rifle Regiment).

An unexpected blow from the northern flank, which ended in a heavy defeat of the German reserve regiment of Lieutenant Colonel V. Keller, forced the Germans to stop attacks on the 2nd Army, but the 14th Siberian Rifle Division sent to Humin was met by a powerful counterattack of reserves, could not cross the Bzura and suffered large losses.

[12] By the end of January, fighting at Dołowatka, Humin, Wola Szydłowska, Bolimov and Borzymów drew in almost all formations of the 1st and 2nd Russian armies.

The German troops managed to move forward an insignificant distance, gain a foothold in key strongholds, and chain significant Russian forces to themselves.

Captured Russians complained of lacrimation, headache, but were not put out of action” the commander of the 1st reserve corps, Lieutenant General C. von Morgen, was stated.

[13] The fighting, without the previous activity and bitterness, continued along the entire front from the mouth of the Bzura to Pilica until the end of February.