Conversation so far:
What happened to Henry Kissinger during the Bangladesh war?
Under Kissinger's guidance, the United States government supported Pakistan in the Bangladesh Liberation War in 1971.
Are there any other interesting aspects about this article?
Kissinger was particularly concerned about the expansion of Soviet influence in the Indian Subcontinent as a result of a treaty of friendship recently signed by India and the USSR.

Question: Why was he concerned?
Self-contained rewrite: Why was Henry Kissinger concerned about the expansion of Soviet influence in the Indian Subcontinent?