Complex sentence: From Irbid, el Tell moved to Syria where he met Colonel Husni al-Za'im who had become Commander in Chief of the Syrian Army in May 1948, and had seized power on 30 March 1949 in a bloodless coup.
Split into simpler sentences: From Irbid, el Tell moved to Syria where he met Colonel Husni al-Za'im. Al-Za'im, had become Commander in Chief of the Syrian Army in May 1948, and had seized power on 30 March 1949 in a bloodless coup.