Complex sentence: At around 17:00 Lieutenant-Colonel Koszutski's battlegroup, consisting of the 2nd Armoured Regiment and the 8th Infantry Battalion, arrived at the ridge, followed by the Podhalian Rifle Brigade and elements of the 9th Infantry Battalion at 19:30.
Split into simpler sentences: At around 17:00 Lieutenant-Colonel Koszutski's battlegroup, consisting of the 2nd Armoured Regiment and the 8th Infantry Battalion, arrived at the mace. The Podhalian Rifle Brigade and elements of the 9th Infantry Battalion reached the ridge at 19:30.