Complex sentence: However, throughout the final year of hostilities he was most active in much smaller operations, harassing British foraging parties near Charleston; he had become engaged in these operations after the death of his friend Colonel Laurence, taking over his intelligence network in the area.
Split into simpler sentences: However, throughout the final year of hostilities he was most active in much smaller operations, harassing British foraging parties near Charleston. He had become engaged in these operations after the death of his friend Colonel Laurence, taking over Laurence's intelligence network in the area.