Conversation so far:
What was Team B, the group that Richard Pipes was part of?
Team B was a competitive analysis exercise, and the group was composed of civilian experts and retired military officers
What was Team B, the group that Richard Pipes was a part of, for?
Team B aggressively assessed Soviet Union military capabilities
What was the goal of Team A?

Question: What did Team B do?
Self-contained rewrite: What did Team B, the group that Richard Pipes was a part of, do?