The two sides also agreed that the two sides would resume talks on the border issue when resolving the dispute in Kashmir. According to Jane`s International Defence Review, the agreement was also important during the Cold War, as Pakistan had ties to the United States and was a member of the Central Treaty Organization and the South Asian Treaty Organization.  The agreement was part of a general strengthening of the Pakistan Association, which led to the secession of Pakistan from the United States.   After the delimitation of the borders, the two countries also concluded agreements on trade and air travel, the latter of which was China`s first international agreement with a non-communist country.  After passing the Khunjerab, the demarcation line is generally south along the main watershed mentioned above and the Taghumbash And Koliman Su (Oprang Jilga) rivers. According to the Chinese map, the border that left the southeast point runs along the small stretch of the Koliman Su to reach its confluence with the Kelechin River. The Pakistan-China border agreement for the Pakistan-China border was signed in March 1963. This agreement has become quite controversial because of India`s refusal to recognize it, because it also claims sovereignty over some of the territories. In addition to this controversy, the agreement has altered the regional balance by bringing Pakistan and China closer together, while weighing on Pakistan-U.S. relations. Pakistan had expressed some reservations, with Chinese maps showing parts of Pakistan on their side. Ayub Khan asked for clarification, but no response was received. After Pakistan`s vote to place a seat of China on the UN Security Council, the Chinese withdrew their cards in January 1962 and agreed to start discussions on the subject.
Pakistan has welcomed its willingness to reach an agreement. Talks between the two sides officially began on 13 October 1962 and resulted in an agreement signed on 2 March 1963 by Foreign Ministers Chen Yi and Zulfiqar Ali Bhutto of China and Pakistan respectively. As a result, China withdrew from the disputed area following a complaint by Pakistan. It demonstrated the aspirations of the people of both countries for the growth of friendly and fraternal relations that, in the years to come, had to play an aiding role in ensuring world peace. China has ceded more than 1,942 square kilometres to Pakistan and Pakistan to recognize Chinese sovereignty over hundreds of square kilometres of land in northern Kashmir and Ladakh.   The agreement is not recognized as legal by India, which also claims the sovereignty of a part of the country. In addition to rising tensions with India, the agreement has shifted the balance of the Cold War by bringing Pakistan and China closer together, while easing relations between Pakistan and the United States. The agreement was moderately economicly beneficial for Pakistan, which obtained pastures in the agreement, but much more important politically, as it reduced both the potential for conflict between China and Pakistan and, according to Syed, “China has formally and firmly declared that Kashmir does not yet belong to India.  The 1963 period, which referred to the case, expressed the view that, in signing the agreement, Pakistan had further dampened the “hopes for a settlement” of the Kashmir conflict between Pakistan and India.