Lavrentiy Beria

"The enemies of the Soviet state calculate that the heavy loss we have borne will lead to disorder and confusion in our ranks. But their expectations are in vain: bitter disillusionment awaits them. He who is not blind sees that our party, during its difficult days, is closing its ranks still more closely, that it is united and unshakable." (c) Lavrentiy Beria Beria was the longest-lived and most influential of Stalin's secret police chiefs, wielding his most substantial influence during and after World War II. Following the Soviet invasion of Poland in 1939, he was responsible for organizing the Katyn massacre. He simultaneously administered vast sections of the Soviet state and acted as the de facto Marshal of the Soviet Union in command of NKVD field units responsible for barrier troops and Soviet partisan intelligence and sabotage operations on the Eastern Front during World War II. Beria administered the vast expansion of the Gulag labour camps, and was primarily responsible for overseeing the secret detention facilities for scientists and engineers known as sharashkas.