help with the break-through, the 1st platoon, 1st company under Lt. Glowacki was ordered to cross the bridge once again and head towards the city centre. It did not find the isolated Polish unit and retreated back across the river. Envoys were also dispatched on foot to look for the lost detachment and eventually found the 3rd tank platoon. After two hours of constant fighting, the unit reached the last intact bridge across the Neman, at that time already set on fire. Only two tanks managed to cross the burning bridge, the rest had to be abandoned. 20 July Despite losing the bridges, the Russian forces crossed the river overnight in several locations to the north of Grodno. To reinforce the defence of the south-western bank of Neman the XVIII Infantry Brigade (part of 9th Infantry Division) under Col. Aleksander Narbutt-Łuczyński was sent to the battlefield. It was to attack north, along the western bank of the river, and eliminate the Russian bridgeheads. By the time the Polish assault started, the Russians already were well-entrenched. Although initially the Polish brigade managed to push the Russian forces back to the line of 19th century Russian forts west of the city, the attack ultimately failed. The day's fighting resulted in a stalemate. The following day the Polish tanks withdrew further south-west and took part in a skirmish around the village of Wielka Olszanka, some from the town, again using part of the tanks as an improvised armoured train. The assault on Russian positions manning the Hill 177 and an old Russian fort No. 5 was successful and the Russians retreated towards the river, chased by Polish tanks and infantry. This temporary success did not however force the Russians out of the close side of the river and in the following days Hayk Bzhishkyan's 3rd Cavalry Corps crossed the river further north and restarted its march south-westwards, along the Grodno-Sokółka railway. The Polish force fought numerous delaying battles, but in the end had to retreat to Sokółka. The 2nd company was then withdrawn from the front and sent to Łódź for repairs. The 1st company remained on the front and shared the fate of the XVIII Brigade, that eventually retreated towards Warsaw and took part in the fighting along the Narew during the Battle of Warsaw in mid-August. In his memoir, Hayk Bzhishkyan recalled that the fights for Grodno cost him "500 killed