Geneva is a global city, a financial centre, and a worldwide centre for diplomacy due to the presence of numerous international organizations, including the headquarters of many agencies of the United Nations and the Red Cross. Geneva hosts the highest number of international organizations in the world. It is also where the Geneva Conventions were signed, which chiefly concern the treatment of wartime non-combatants and prisoners of war. Together with, for instance, New York City (global headquarters of the UN), Basel (Bank for International Settlements), and Strasbourg (Council of Europe), Geneva is a city serving as the headquarters of one of the most important international organizations, without being the capital of a country.