Foreign and Commonwealth Office (FCO).
US Department of State.
Canadian Department of Foreign Affairs and International Trade (DFAIT).
Australian Department of Foreign Affairs and Trade.
Japan’s Ministry of Foreign Affairs (in English).
China’s Ministry of Foreign Affairs (in English).
Section of the official EU website (in English) providing a gateway into different aspects of the EU’s external affairs.
One of the most reviled websites in the world (at least by governments) but containing a wealth of diplomatic documents for analysis by students of global politics.