Richard Haass - Understand who is behind your political adversary

In a discussion here from 2011, Dr Richard Haass talks about the peace process in Northern Ireland. He said:

"In any negotiation, it's not enough to look behind you at maintaining your own domestic position, you've also go to look behind your adversary and ask yourself what he has to do to maintain his domestic position. In a funny sort of way negotiations only succeed if each side to some extent becomes an implicit partner of the other side."