冀州,界桥之战过去不久,袁绍本想趁胜追击,但久攻未下,担心后方受损,撤兵南回时,却被公孙瓒趁机引兵在巨马水大败,但很快,袁绍又在龙凑将公孙瓒打败,双方互有胜负,势均力敌,袁绍担心袁术趁机夹攻,公孙瓒也...