The Battle of Łomianki was a part of the opening campaign of World War II during the 1939 German invasion of Poland, fought between Polish and German forces.

A couple divisions and brigades did successfully reach Warsaw, but majority was halted by the Germans who were about to close the ring around the Polish capital.

Around 5,000 Polish soldiers and officers led by General Mikołaj Bołtuć decided to fight by Łomianki.

In spite of the low odds of success, a combined assault of the Polish infantry, cavalry, and police did find a weak spot and penetrated the 1st line of the German defenses.

General Mikołaj Bołtuć, the commanding officer was killed by sniper fire while leading the charge.