Complex sentence: Ash-Sharif then rained even greater artillery and air bombardment down upon the Chadians occupying the town, and brought in a number of commando units and formations from the Jamahiriya Guard.
Split into simpler sentences: Ash-Sharif then rained even greater artillery and air bombardment down upon the Chadians occupying the town. In addition, he brought in a number of commando units and formations from the Jamahiriya Guard.