This is the web site of the North Atlantic Treaty Organization, whose member nations oversee the security of Europe.
The Ministry of Defence is the United Kingdom's counterpart to the U.S. Department of Defense and is responsible for overseeing the military defense and security of the United Kingdom.
This web site of the Canadian government provides background information on countries throughout the world.
This site provides social and economic information about all the nations of the world.
This web site provides country information from the perspective of the International Conflict Research Center.
The IMO is the United Nations specialized agency with responsibility for the safety and security of shipping and the prevention of marine pollution by ships (from about IMO on their web site).
The International Civil Aviation Organization is the agency of the United Nations that codifies and adopts standards for international air navigation, air transport, flight inspections, and prevention of unlawful interference and border crossing.