Conversation so far:
What happened to Henry Kissinger during the Bangladesh War?
Under Henry Kissinger's guidance, the United States government supported Pakistan in the Bangladesh Liberation War in 1971.
Are there any other interesting aspects about Henry Kissinger in the Bangladesh War?
Henry Kissinger sought to demonstrate to the People's Republic of China the value of a tacit alliance with the United States.

Question: Why was he concerned?
Self-contained rewrite: Why was Henry Kissinger concerned during the Bangladesh War?