诸史记载,开元前期十五六年中,契丹可突于与唐发生四次战争,有关战役时间、原因、结果和性质有模糊之处。实际上,两者间战役只有三次,三次战役性质各有不同,十分复杂。 Historical records, the first fifteen sixteen years of Kaiyuan, Khitan can suddenly and Tang occurred four wars, the battle time, causes, results and nature of the fuzzy place. In fact, the battle between the two only three times, the nature of the three batches of different, very complicated.