Taiwan, Chinese presidents to meet for first time since 1949

The presidents of China and Taiwan will meet this weekend for the first time since civil war divided their lands 66 years ago.This is the step to improve the relationship.
Reason for tension between China and Taiwan:
China and Taiwan, while in practice maintaining a fragile "status quo" relationship, periodically grow impatient with the diplomatic patchwork that has kept the island separate from the Communist mainland since 1949.  After losing the civil war to Communist Chinese and fleeing to Taiwan in 1949, the nationalist Kuomintang (KMT) leaders of the Republic of China regarded the Communist Chinese government as illegitimate, claiming the mainland as rightfully their own. Beijing, in turn, regards Taiwan as a renegade province, and has tried repeatedly to persuade the island to negotiate a return to the fold.