and wounded, 400 horses and seven days of priceless time". Polish losses remain unknown. Outcome The battle ended in a defeat for the Polish forces. The line of defence running along the Neman and Szczara had to be abandoned and the Polish forces attempted to withdraw and defend Narew and Bug River lines. The defence proved equally unsuccessful and it was not until mid-August when the Poles could stop the Russian Army in the Battle of Warsaw. Several post-war authors called the Polish defence of Grodno on 19 July "mediocre at best", and argued that the officers suffered from a "psychosis of disaster and retreat". Indeed on 23 July 1920, Gen. Gustaw Zygadłowicz, commander of the 1st Army was relieved of command and replaced with Gen. Jan Romer. Citations References Grodno 1920 1920 in Poland Grodno History of Grodno 1920 in Belarus July 1920 events Western Belorussia (1918–1939) Military history of Belarus