The 29 April 1954 agreement mentioned above was set to last for eight years. When it lapsed, relations were already souring, the provision for renewal of the agreement was not taken up, and the Sino-Indian War broke out between the two sides. However, in the 1970s, the Five Principles again came to be seen as important in Sino-Indian relations, and more generally as norms of relations between states. They have become widely recognized and accepted throughout the region.