Complex sentence: In July 1947 MBP took control over Military Intelligence, which was the "2nd Section of General Staff of the Polish People's Army", Military Intelligence joined together with the civilian intelligence branch becoming Department VII of Ministry of Public Security.
Split into simpler sentences: In July 1947, the MBP absorbed "2nd Section of General Staff of the Polish People's Army", Polish Military Intelligence. Military intelligence was joined together with the civilian intelligence to become Department VII of Ministry of Public Security.