Complex sentence: After finishing seminary in 1913, he returned to Russia and worked as a translator in counterintelligence, first as a Zaamurskogo border guard in Harbin, then in the Department of Counterintelligence at Vladivostok Fortress, Amur Military District, in Vladivostok.
Split into simpler sentences: After finishing seminary in 1913, he returned to Russia. Worked as a translator in counterintelligence first Zaamurskogo County border guards in the city of Harbin, and then-in the Department of Counterintelligence Staff Vladivostok Fortress Amur Military District in Vladivostok.