When China joined hands with the United States earlier this year at the United Nations Security Council to approve the toughest new international sanctions in two decades against North Korea, it implicitly highlighted that Beijing now is left with just one real ally in Asia — Pakistan. Indeed, China has forged with Pakistan one of the closest and most-enduring relationships in international diplomacy.
Mao Zedong famously said China and North Korea were as close as lips are to teeth. Similarly, Beijing now compares its strategic nexus with Pakistan to the closeness between lips and teeth, calling that country its "irreplaceable all-weather friend" and boasting of an "iron brotherhood" with it.
In reality, this is largely a one-sided relationship that is turning Pakistan into China's client and guinea pig.