They retain a healthy and diverse set of connections.
The "choice" before them is not even a choice. It's between resolving this war shortly and proceeding into a traditional post-war diplomatic arrangment where everybody starts making the moves they wanted to make before the war but couldn't due to ~honour~ or swapping sides late in a war ensuring both immediate destruction, statistical and diplomatic, and long-term pariah status.
The more you look at it and think about it, the more evident it becomes that the Usual Suspects wet dream would be tantamount to suicide on the part of IRON.