 Due to the fact that Pakistan was an ally with the United States and had begun to indirectly wage war against the Soviets in Afghanistan with heavy U.S.-backing, relations became strained between the two, with Pakistan closing its diplomatic mission in Vietnam in 1980 and Vietnam doing the same in 1984.However, relations greatly improved in the 2000s, and Pakistan reopened its embassy in Hanoi in October 2000.Vietnam also reopened its embassy in Islamabad and trade office in Karachi in December and November 2005, respectively.