The tragic history of the Assyrian community in the Soviet Union, particularly during the Stalin era, reflects a period of severe repression and violence. While exact numbers are difficult to ascertain, it is estimated that thousands of Assyrians were victims of Stalin's purges in the late 1930s.

In Leningrad (now Saint Petersburg), the Assyrian population faced significant persecution, as many were accused of being "enemies of the state" due to their ethnic background and political affiliations. The Great Purge (1936-1938) led to widespread arrests, executions, and deportations across various ethnic groups, including the Assyrians.

Specific figures regarding the number of Assyrians killed in Leningrad under Stalin's orders are not readily available in historical records, but the overall impact on the Assyrian community was devastating. Many Assyrians were executed, while others were sent to labor camps, and their cultural and social structures were severely disrupted.

For more detailed information, you may want to explore academic articles or historical texts that focus on the Soviet policies towards ethnic minorities during Stalin's regime. If you have any specific aspects you would like to know more about, feel free to ask!