Elizabeth II , as Head of the Commonwealth , along with the Duke of Edinburgh , the Prince of Wales and the Duchess of Cornwall all attended the summit . The summit coincided with a state visit to Malta by Elizabeth II as Queen of the United Kingdom , her first visit to the country since 2007 . Secretary-General of the United Nations Ban Ki-Moon and French President François Hollande addressed a special session on climate change . Ban and Nicolas Sarkozy , Hollande 's predecessor , had previously attended CHOGM 2009 in Trinidad and Tobago prior to the Copenhagen Summit for the same reason . Indian Prime Minister Narendra Modi was absent from the meeting - his government has opposed arguments that the country should curtail its use of coal fired electrical generation and other greenhouse gases . India was instead represented by External Affairs Minister Sushma Swaraj
CHOGM 2009
Commonwealth Heads of Government Meeting 2009
Commonwealth Heads of Government Meeting 2015