Foreign relations of Australia are influenced by its position as a leading trading nation and as a significant donor of humanitarian aid. Australia's foreign policy is guided by a commitment to multilateralism and regionalism, as well as to strong bilateral relations with its allies. Key concerns include free trade, terrorism, refugees, economic co-operation with Asia and stability in the Asia-Pacific. Australia is active in the United Nations and the Commonwealth of Nations. Given its history of starting and supporting important regional and global initiatives, it has been described as a regional middle power par excellence.