The Polish 39th Infantry Division was a reserve unit of the Polish Army, which took part in the Polish September Campaign. Commanded by General Brunon Olbrycht, it was part of the Prusy Army

Prusy Army

The Prusy Army was one of the Polish armies to fight during the Invasion of Poland in 1939. Created in the summer of 1939 as the main reserve of the Commander in Chief, it was commanded by Gen. Stefan Dąb-Biernacki. One of the meanings of Prusy in Polish is Prussia, but this name only served as a...

 and was concentrated in the area of the Holy Cross Mountains.

The Division was completed on September 10, 1939 and it was ordered to defend the Vistula

Vistula

The Vistula is the longest and the most important river in Poland, at 1,047 km in length. The watershed area of the Vistula is , of which lies within Poland ....

 river line between the towns of Dęblin

Deblin

Dęblin is a town, population 19,500 , at the confluence of Vistula and Wieprz rivers, in Lublin Voivodeship, Poland. Dęblin is the part of the agglomeration with adjacent towns of Ryki and Puławy, which altogether has over 100 000 inhabitants....

 and Kazimierz Dolny

Kazimierz Dolny

Kazimierz Dolny is a small town in Central Poland, on the right bank of the Vistula river in Puławy County, Lublin Province.It is a considerable tourist attraction as one of the most beautifully situated little towns in Poland. It enjoyed its greatest prosperity in the 16th and the first half of...

. Due to General Olbrycht's sickness, it was de facto commanded by Colonel Bronisław Duch. On September 14, the 39th, which had become part of the Lublin Army

Lublin Army

Lublin Army was an improvised Polish Army created on September 4 1939 from 1 motorized brigade and various smaller units concentrated around cities of Lublin, Sandomierz and upper Vistula river. It was commanded by Maj. Gen...

, withdrew towards Chełm. Five days later, it engaged the Wehrmacht

Wehrmacht

The Wehrmacht – from , to defend and , the might/power) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the Heer , the Kriegsmarine and the Luftwaffe .-Origin and use of the term:...

 in Krasnystaw

Krasnystaw

Krasnystaw is a town in eastern Poland with 19,615 inhabitants . Situated in the Lublin Voivodeship , previously in Chelm Voivodeship . It is the capital of Krasnystaw County....

, then fought the German 4th Light Division near Zamość

Zamosc

Zamość ukr. Замостя is a town in southeastern Poland with 66,633 inhabitants , situated in the south-western part of Lublin Voivodeship , about from Lublin, from Warsaw and from the border with Ukraine...

. The Division took part in the Battle of Tomaszów Lubelski

Battle of Tomaszów Lubelski

Battle of Tomaszów Lubelski took place from 17 September to 26 September 1939 near the town of Tomaszów Lubelski. It was the second largest battle of the Invasion of Poland and also the largest tank battle of the campaign. It resulted in the destruction of the Polish forces...

and capitulated on September 26, 1939.