"However, Pakistan was a valuable diplomatic partner, and its government helped the United States achieve a rapprochement with the People’s Republic of China in the early 1970s."

"U.S. prestige was damaged in both nations, in Pakistan for failing to help prevent the loss of East Pakistan and in India for supporting the brutality of the Pakistani regime’s actions"

https://history.state.gov/milestones/1969-1976/south-asia