SATV, Kathmandu, May. 22 - Nations and empires have fought each other over territory for centuries. In March 1963, Pakistan did something rare: It offered land five times the size of Hong Kong to another country, China.

Under a boundary agreement with Beijing, Pakistan transferred control of the Shaksgam Valley, roughly 5,180 square kilometres (2,000 square miles) in the Karakoram range, territory India considers part of disputed Kashmir.