Complex sentence: Next he moved to Jerusalem, continuing his freelance reporting for three more years until the U.S.-led invasion of Iraq (where he has been predominantly since), and Engel was offered a position as a foreign correspondent with NBC.
Split into simpler sentences: Next he moved to Jerusalem, continuing his freelance reporting for three more years until the U.S.-led invasion of Iraq (where he has been predominantly since). He was offered a position as a foreign correspondent with NBC.