... counter proliferation, the strength of and coordination among the countries and agen-cies participating in the exercises, and the expanded range of countries that engage in the exercises.Session ... Japan, the Netherlands, Poland, Portugal, Spain, the United Kingdom, and the United States.e interdiction principles are summarized in the following paragraphs (see Session 2, PSI Design and ... providing objective analysis and effective solutions that address the challenges facing the public and private sectors around the world.Visit RAND at www.rand.orgExplore the RAND National Defense...