武德九年六月初四日,玄武门政变在唐宫爆发。在政变前夕,李渊决定支持何方?李世民的处于优势还是劣势?李建成运用了哪些手段?……长安城里究竟发生了什么?唐武德二年(公元619年),应该是李世民很郁闷的一年,自从去年底讨平了薛仁杲之后,唐高祖就一直没有给他打仗立功的机会。今年刘武周勾结突厥频频进犯,眼见得裴寂和李元吉无力对抗、节节败退,唐高祖不仅不用他出战,还在频频调走他手下的人才,更有甚者, Taken in nine years on the fourth day of June, the Xuanwu Gate coup broke out in the Tang Palace. On the eve of the coup, Li Yuan decided to support where? Li Shimin’s strengths or weaknesses? Li Jiancheng use of what means? ... What happened in the city of Chang’an? Tang Takenori two years (AD 619), should be very depressed Li Shimin a year, Since the end of last year to discuss the Xue Renliao, Tang emperor has not given him the opportunity to war meritorious service. This year, Liu Wu Zhou collusion Turks frequently attacked, saw Pei Li and Li Yuanji unable to confront, steadily retreated, Tang emperor not only did not play him, still frequently transferred to his men talent, what is more,