Please substitute the following for the definition on page 276 of our article in the Spring 1996 issue of International Organization (Volume 50, No. 2, pp.269–99):

Definition. A coalition of m (out of n) members is nonconnected if there is a member i ε {N} – {M} that belongs in the Pareto set of {M}.

The end of the cold war has signaled a dramatic increase in the number and forms of United Nations (UN) intervention into ongoing conflicts. Yet, this larger UN role has not always translated into success. Short-term failures are evident, but the long-term effects of UN efforts are not readily apparent. We explore this longer-term impact by examining the incidence of recurring conflict between state dyads following a crisis. Overall, UN intervention has proved ineffective in inhibiting, delaying, or lessening the severity of future conflicts, independent of the level of violence in the precipitating crisis, the relative capabilities of the two states, the states' history of conflict, and the form of crisis outcome; nor were UN efforts successful in deterring future conflict. These sobering results suggest that changes in long-term strategy may be in order.