Complex sentence: On 3--4 November, JNA troops attacked the Old Town and the Argentina Hotel using small arms and sniper fire from positions held by the 3rd Battalion of the 472th Motorized Brigade, which occupied the positions closest to the city centre.
Split into simpler sentences: On 3--4 November, the JNA troops attacked the Old Town and the Argentina Hotel using small arms and sniper fire. The fire came from positions held by the 3rd Battalion of the JNA 472th Motorized Brigade, which occupied positions the closest to the city centre.