A fourth stream of research looks at issues related to conflict resolution in the context of international and ethno-political conflict.  One article examines whether and when countries should set preconditions to negotiating with their enemies; this analysis was published in Foreign Affairs, the premier foreign policy journal for practitioners.  In another project, a colleague and I study Israeli attitudes towards a two-state solution.  We find that concerns regarding successful implementation of a negotiated agreement can lead parties to prefer "balanced" over advantageous deals.  Another project, conducted in Sri Lanka, demonstrates the kind of long-term impact that 'peace camps' can (and cannot) have on attitudes and behaviors of ethnic disputants.