Battle of Grodno (1939)

Battle of Grodno
Part of Invasion of Poland
Overhead view of Grodno, 1935
Date September 20–24, 1939 Location Grodno, Poland Result Soviet victory
Belligerents
Soviet Union	Poland
Commanders and leaders
Ivan Boldin Mikhail Petrov	Wacław Jan Przeździecki Józef Olszyna-Wilczyński
Strength
15th Tank Corps Unknown number of tanks and infantry	2,000-2,500 (September 20) 3,500-4,000 (September 21) 2 AA guns
Casualties and losses
Soviet counts: 57 KIA 159 WIA 23 AFVs Polish counts: 800 KIA, MIA and wounded	Soviet counts: 644 KIA 1,543 captured

Soviet counts:
57 KIA
159 WIA
23 AFVs

The Battle of Grodno took place between 21 September and 24 September 1939, during the Soviet invasion of Poland. It was fought between improvised Polish units under Gen. Wacław Jan Przeździecki and the Red Army of the Soviet Union, at the time in a non-aggression agreement with Nazi Germany under the Ribbentrop-Molotov Pact.

The Soviet aggression caught much of the eastern Poland virtually undefended, as most of the Polish forces from the area had already been transferred to the German front. After breaking through overstretched defences of the Border Defence Corps, the Soviet 15th Tank Corps started a fast advance towards the city of Grodno. Commander of the pre-war Grodno Military Area Command Gen. Józef Olszyna-Wilczyński, together with the mayor of Grodno Roman Sawicki, started organizing city defences, based mostly on march battalions, volunteers, Boy Scouts and police forces.

Ill-equipped, undermanned and lacking any anti-tank artillery, the Polish defenders relied mostly on improvised anti-tank means such as bottles of gasoline or turpentine, small arms fire, and anti-tank obstacles. On 20 September, the Soviet tanks of the Soviet 27th Light Tank Brigade of the 15th Tank Corps reached the city's outskirts. Although both numerically and technically superior, the Soviet forces lacked infantry support and oil, which stopped many tanks. Also, the tank crews had no experience in urban warfare, which was a significant help for the defenders.

The Soviets tried to seize the city from the south through the bridge over the Niemen River. However, the initial assault was repelled. In the early morning of 21 September, the defenders were joined by the remnants of the reserve Wołkowysk Cavalry Brigade under Brigadier General Wacław Przeździecki. After two days of heavy fighting, often in close quarters, much of the city centre was destroyed by Soviet artillery. Seeing no chance for further defence, on 22 September the remainder of the Polish forces withdrew towards the Lithuanian border. According to Soviet sources, the Red Army suffered casualties of 57 killed and 159 wounded. However, Polish historians Andrzej Krzysztof Kunert and claim that the Red Army lost around 800 killed, missing or wounded. They also lost 19 tanks and four armored cars.

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