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 build strong bilateral relations with its allies. Key concerns include free trade, terrorism, refugees, economic cooperation with Asia and stability in the Indo-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.