Piłsudski arrived at the front near Lida on 15 April, bringing reinforcements from Warsaw. His plan called for exploitation of the gap in the Soviet lines between Vilnius and Lida by an advance towards Vilnius using the road and railway.
On April 15th, Piłsudski reached the battlefield close to Lida with reinforcements from Warsaw. According to his strategy, he aimed to take advantage of the gap in the Soviet lines between Vilnius and Lida by advancing towards Vilnius using both road and railway.