Complex sentence: One was the capture of the remaining cities held by the Irish Confederate and Royalists forces, the other was an escalating guerrilla war in the countryside, as Irish fighters known as tories attacked his supply lines.
Split into simpler sentences: One was the capture of the remaining cities held by the Irish Confederate and Royalists forces. The other was an escalating guerrilla war in the countryside, as Irish fighters known as tories attacked his supply lines.