Daniel Markey
The Shaksgam Valley—also referred to as the Trans-Karakoram Tract—is a sparsely populated region north of the Siachen Glacier disputed by China, India, and Pakistan. India considers the territory part of the former princely state of Jammu and Kashmir and therefore asserts sovereignty over it, while Pakistan maintains its right to dictate its administration as a former piece of its broader Kashmir claim.
In 1963, Pakistan and China signed the Sino-Pakistan Boundary Agreement, under which Pakistan provisionally ceded control of the Shaksgam Valley to China, pending a final resolution of the Kashmir dispute. The 1962 Sino-Indian War over disputed border territory motivated Pakistan to seek peaceful negotiations to settle its own nondelineated border with China in the contested Kashmir region. The agreement enabled Pakistan to gain the upper hand against India in Kashmir while securing a stronger partnership with China in the aftermath of India’s 1962 defeat. India rejected the agreement as illegal, arguing that Pakistan lacked authority to transfer territory it did not sovereignly control. Today, China administers the area in practice, while India continues to contest both the boundary agreement and China’s presence there, making the Shaksgam Valley a politically sensitive flashpoint at the intersection of the China-India and India-Pakistan disputes.