The fall of the Berlin wall was a symbol of the failure of two systems to exist totally independent of each other. It also rendered obsolete the grand scenarios necessitated by the Cold War for dealing with a nuclear bombing attack. We hope and expect that these particular scenarios based on the premise of hostility between the world powers of the East and West never will need to be considered again. However, both sides gained a tremendous amount of experience in how nuclear and other weapons and industries operate, their health and environmental effects, and the extreme danger of these weapons. In the present time of peace among the world powers, it is important to develop disaster response scenarios that will be useful world-wide. We must contribute our collective wisdom and experience through working together as a world community. The recent cooperation between the United States and Russia in joint space program efforts is an example of the progress that can be made through close collaboration between countries that formerly were adversaries.