Complex sentence: Assad then engaged in a protracted power struggle with Salah al-Jadid, chief of staff of the armed forces, Assad's political mentor, and effective leader of Syria until November 1970, when Assad seized control and arrested Jadid and other members of the government.
Split into simpler sentences: Assad then engaged in a protracted power struggle with Salah al-Jadid, chief of staff of the armed forces and effective leader of Syria. In November 1970, Assad seized control and arrested Jadid and other members of the government.