Along with New Zealand, the United Kingdom, Malaysia and Singapore, Australia is party to the Five Power Defence Arrangements, a regional defence agreement. A founding member country of the United Nations, Australia is strongly committed to multilateralism and maintains an international aid program under which some 60 countries receive assistance. The 2005–2006 budget provides AU$2.5 billion for development assistance. Australia ranks fifteenth overall in the Center for Global Development's 2012 Commitment to Development Index.