In this monograph, Dr. Richard L. Millett succinctly documents how the "spillover" from the ongoing crisis in Colombia effects each of the five countries on its porous borders-as well as somewhat more distant states and regions. The author reminds us that this is not just a question of extraterritorial armed combat across frontiers with greedy illegal drug traffickers, leftist insurgents, and rightist paramilitary groups. In today's global village, there is no such thing as a purely national crisis or a purely military conflict. Every conflict has global political, economic, social, and security implications ranging from trade disruption to the growth of criminal organizations to refugee flows to violent clashes to local and regional political instability. Conditions of instability also undermine efforts to nurture democracy and free-market economies, and to install anything approaching the rule of law and human rights. Moreover, no single nation can confront these problems alone.