angrybellsprout
Prince
![](http://www.golivewire.com/images/ib/153666_f.jpg)
When you sign a partial agreement, such as the CWC, the utilities of all nations involved goes up, as the costs in terms of both financial and casualtes involved in chemical weapons goes down. When both nations have their expected utilities go up because of a single event, the gap for settlement goes away.
With the gap for settlement gone, the conflict has been prolonged, as per the shift in lines mentioned in the chart.