Final answer:
The forced repatriation of Soviet citizens during WWII was known as "Operation Keelhaul." It involved the return of individuals to the Soviet Union, where they often faced dire consequences. The reason behind the Kaminsky family's release from Drancy is not provided in the provided context.
Step-by-step explanation:
The forced repatriation of Soviet citizens who were liberated from German captivity by Allied forces during World War II was known as "Operation Keelhaul." This controversial operation involved the return of people who had potentially collaborated with the Germans against the Soviets, including Cossacks, Ukrainians, and Russians, who were then repatriated to the Soviet Union, often facing harsh and possibly fatal consequences. The repatriation was part of the wider movement of displaced individuals across Europe, as the aftermath of war meant dealing with millions of displaced individuals and the complexities of post-war geopolitical stability. The Kaminsky family's release from the Drancy detention camp is not specifically detailed in the provided information, so it's impossible to determine why they were released without additional context.