Complex sentence: After relieving the Landau fortress, which was in the hands of the officers who had not gone over, he led two divisions against Mieroslawski; and at Waghäusel, he obligated that numerically far greater force to retreat.
Split into simpler sentences: After relieving the Landau fortress, which was in the hands of the officers who had not gone over, he led two divisions against Mieroslawski. At Waghäusel, he obligated that numerically far greater force to retreat.