Complex sentence: After Sudoplatov left his post, he was replace by Vladimir Dekanozov, before becoming INO head, Dekanozov was Deputy Chairman of Georgian Council of People's Commissars and after he left his post in 1939 he become the USSR ambassador in Berlin.
Split into simpler sentences: After Sudoplatov left his post, he was replace by Vladimir Dekanozov. Before becoming INO head, Dekanozov was Deputy Chairman of Georgian Council of People's Commissars and after he left his post in 1939 he become the USSR ambassador in Berlin.