Complex sentence: Moorhead was forced to make a fighting retreat to Kroh throughout 12 December, where they passed through Lt. Col. Cyril Stokes delaying with the 5/14th Punjab, who had dug in.
Split into simpler sentences: Moorhead was forced to make a fighting retreat to Kroh on 12 December. They then passed Lt. Col. Cyril Stokes, who was delaying with the 5/14th Punjab, who had dug in.