Augustów roundup

Augustów roundup
	Part of Anti-communist resistance in Poland (1944–1953)
Date	July 10 to July 25, 1945
Location	Suwałki and Augustów regions, Poland
Result	The dismantling of the Polish underground and the last opposition to People’s Poland in the region
Belligerents
Soviet Union	Polish Underground
Commanders and leaders
Unknown	Unknown
Strength
Unknown	over 3000
Casualties and losses
	2,000 captured and later executed, 600 deported

The Augustów roundup (Polish Obława augustowska) was a military operation against the Polish World War II anti-communist partisans and sympathizers following the Soviet takeover of Poland. The operation was undertaken by Soviet forces with the assistance of Polish collaborationist units, and conducted from July 10 to July 25, 1945, in Suwałki and Augustów region (contemporary Podlaskie) of northern Polish People's Republic.

Out of 2,000 arrested by the Soviet forces, about 600 have disappeared. They are presumed to have been executed and buried in an unknown location in present-day Russia or Belarus. Polish Institute of National Remembrance has declared the 1945 Augustów roundup "the largest crime committed by the Soviets on Polish lands after World War II". The crime has been called "second Katyn", "small Katyn" or "little Katyn" in today's Poland, in reference to the Katyn massacre that occurred in 1940.