Once again, India and China are at an impasse at the border. But why do the problems persist even after four agreements to solve the border problem? This article sets out the problem in the text of the agreement. And also explains China`s lack of intent. Unfortunately, these are profoundly erroneous agreements which, at best, make the search for a solution to the border issue a strategic illusion and, in the worst case, a cynical diplomatic salon trick. In fact, in the eastern sector, where the Chinese have not accepted the McMahon line defined in bulk, which follows the principle of the water separator, and in the western sector, which is experiencing another episodic impasse, there are two hypothetical lines. The first is what Indian troops see as the extent to which they can dominate through patrols, which goes far beyond the point where they are actually deployed and present. The second thing the Chinese think is that they effectively control what is far south of the line on which they were positioned in 1993. 1993 Agreement on the Maintenance of Peace and Tranquillity Along the Line of Effective Control in the Border Areas between India and China Four agreements signed between the two countries in September 1993, November 1996, April 2005 and October 2013 are at the heart of the continuing failure of India and China to make meaningful progress on the border issue. .