Since the 1990s, Asia-Pacific countries have changed their approaches to security cooperation and regional order. The end of the Cold War, the resurgence of China, the Asian economic crisis, and the events of September 11, 2001, have all contributed to important changes in the Asia-Pacific security architecture.

Since September 11, 2001, much has been said about the difficult balancing act between freedom and security, but few have made specific proposals for how to strike that balance. As the scandals over the abuse of Iraqi prisoners at Abu Ghraib and the "torture memos" written by legal officials in the Bush administration show, without clear rules in place, things can very easily go very wrong.

"CSIA's research on cooperative denuclearization began during the August 1991 putsch against Mikhail Gorbachev. To those of us familiar with nuclear weapons, their construction, and command and control, and with the looming revolution about to sweep the then–Soviet Union, it was plain that a new and unprecedented danger to international security was emerging. An appropriate policy response to this new form of nuclear threat could not be fashioned from traditional Cold War tools of deterrence, arms control, and military preparedness alone. Safety could only be sought through new policies emphasizing cooperative engagement with the new states, new leaders, and military and industrial heirs of the former Soviet Union...."