History is replete with cautionary tales about the dangers of ideological purges, particularly when they target national-security institutions. One of the starkest examples comes from the Soviet Union ...

A group of Russian scientists have sounded the alarm over what they said were attempts by the head of the security service to openly justify Stalins mass purges, the first such attempt in decades. In ...

When Sergei Kirov, Stalin’s closest political ally, was assassinated in 1934, it set off one of the deadliest crackdowns in Soviet history. What followed wasn’t just an investigation—it was a national ...

Up to 1.4 million Soviet citizens fought for Germany during World War II, one of the largest mass collaborations in modern history. Many were former prisoners of war facing starvation, others were ...