唐初至天宝年间唐与南诏的关系

唐初忙于统一全国，无暇顾及西南的经营，与南诏保持着相安无事的局面。进入武则天时期，吐蕃对中国的威胁日益严重，为了抵抗吐蕃的侵扰，唐朝不得不联合南诏的势力，因而采取支持南诏统一的战略方针。当南诏强大以后，围绕着争夺爨部的问题，唐与南诏引发了冲突，使得西南地区的民族关系逐渐复杂化，最终影响了唐朝的社会稳定。

The Relation Between Tang and Nan Zhao From the Early Tang Dynasty to the Period of Tian Bao

In the early Tang Dynasty,the emperor was so busy integrating the country that the operation of the Southwest was ignored.And Tang and Nan zhao had a harmonious relation.Up to the reign of Wu Ze-tian,the threat of To Bo became worse.And Tang had to unify Nan Zhao,thus adopting a policy of supporting the latter's integrating its country.But,when Nan Zhao became stronger,centring on the struggle about Cuan's army,there appeared the conflict between Tang and Nan Zhao,which gradually made complicated for the national relation in the area of the Southwest,and finally influenced the social stability and security of the Tang Dynasty.