From YaleGlobal Online:
The United States built a close relationship with Pakistan President Pervez Musharraf on the basis of his hard line against terrorism. Shared recognition of a security threat bound the two states together, much as it did during the early Cold War. But Pakistani voters questioned that priority, and the outcome of February parliamentary elections revealed the fragility of the current US-Pakistan alliance constructed on security interests. In contrast, China’s alliance with Pakistan is based on permanent strategic interests and immutable issues of geography, including China’s desire for access to the Indian Ocean. Regardless of a world’s changing security paradigm, the pair’s trade and security interests will continue to coincide. Thus, Pakistan’s alliance with China is more enduring than the one with the US.