The imperatives for cooperation / Janne E. Nolan ... [et al.] -- Regime architecture : elements and principles / Antonia Handler Chayes and Abram Chayes -- Cooperative security : assessing the tools of the trade / Leonard S. Spector and Jonathan Dean -- Cooperative security and the political economy of nonproliferation / Wolfgang H. Reinicke -- Military action : when to use it and how to ensure its effectiveness / William J. Perry -- Global institutions in a cooperative order : does the United Nations fit? / James A. Schear -- Cooperative security in Europe / Catherine McArdle Kelleher -- Emerging states and military legacies in the former Soviet Union / Coit D. Blacker -- Cooperative security in the Middle East / Geoffrey Kemp -- Cooperative security in the Asia-Pacific region / Harry Harding -- Cooperative security and South Asian insecurity / Kanti Bajpai and Stephen P. Cohen.