Summary of Petras Tarasenko's book "Lithuanian Struggle for Independence" from 1925

In July 1920, the Poles, under pressure from the Bolsheviks, began to retreat and on July 15 abandoned Vilnius. However, they did not immediately hand over Vilnius to Lithuania, but only on August 27. <...> At the end of August, the Poles demanded the withdrawal of our troops so that we would not hinder their actions against the Bolsheviks. When the Lithuanians did not agree, Polish forces occupied Augustów, Suwalki and Seini. On September 15, negotiations began, the Poles made such demands that, "in order not to disgrace their name, the Lithuanians did not accept

On September 22, 1920, the Poles crossed the Nemunas in large forces and attacked Grodno, and in order to cut off the Lithuanian army's communication with Suwalki, they attacked Varėna. A treaty was signed in Suwalki, and the Poles did not stop dreaming about the occupation of Vilnius and all of Lithuania, when one hand was writing a peace treaty and the other was enslaving Lithuania's independence, as a result of which L. Želigowski's forces occupied Vilnius.

The Lithuanian army, having recovered, began to attack, “<…> the brave men rushed forward and captured Giedraičius”. Seeing that it was not so easy, on November 17, 1920, Gen. L. Želigovskis, with a cavalry brigade, broke through the front with the intention of finishing off the Lithuanians. To correct the situation, our army attacked Širvintai and captured it with great success. Here they took many prisoners of war and a large amount of war booty. Another part of us captured Giedraičius with the same success. At that time, at the request of the Poles, the League of Nations Control Commission intervened, which on November 21 stopped the attack of both sides.