The expulsion of the Volga Germans finished on schedule at the end of September 1941. The number sent to Siberia and Kazakhstan totaled approximately 438,000. Together with 27,000 expelled in the same ethnic cleansing action from the Stalingrad Oblast and 47,000 from the Saratov Oblast, the total number sent to forced internal exile was about 950,000 of which 42,823 to 228,800 perished. The source of these figures is from the Soviet Union. It took 151 train convoys to accomplish the transfer of the Volga German population, an astounding figure when one considers that the Soviet Union was heavily engaged fighting the advancing German army, and all railway stock was required to bring soldiers to the front. This operation also involved 1,550 NKVD and 3,250 police agents assisted by 12,150 soldiers of the Red Army.