Complex sentence: In 200, Xu Chu followed Cao Cao to the Battle of Guandu against the northern warlord Yuan Shao, during which Xu Ta (徐他) and some conspirators plotted to assassinate Cao Cao.
Split into simpler sentences: In 200, Xu Chu followed Cao Cao to the Battle of Guandu against the northern warlord Yuan Shao. During the battle, Xu Ta (徐他) and some conspirators plotted to assassinate Cao Cao.