Piotr Karpovich Soprunenko (17 March 1908 – 23 June 1992) was a Soviet Major-General in the Red Army who carried out the Katyn Massacre in World War II.
Soprunenko had 22,000 prisoners of war under his jurisdiction as head of a branch of the Soviet NKVD called the "Department for POW Affairs" that was created by Lavrenty Beria.
[2] Soprunenko was reportedly responsible for the executions of nearly 22,000 Polish intelligentsia, military officers, and other prisoners of war during the Katyn Massacre in April and May 1940.
[4] In 1990, Nicholas Bethell, 4th Baron Bethell raised a question with the UK Government regarding Soprunenko's role in Katyn with a view to his possible prosecution as a war criminal.
[5] In 1991, the Soviet Union declined to prosecute Soprunenko due to infirmity and old age and he never faced justice.