United Nations ( CNN ) -- Britain 's Queen Elizabeth II will address the U.N. General Assembly in July , the British Mission to the United Nations announced Friday . Queen Elizabeth last addressed the General Assembly in 1957 , it said . The queen 's July 6 speech will come at the conclusion of a nine-day trip to Canada with her husband , the Duke of Edinburgh . She will address the United Nations in her capacity as head of state of 16 U.N. member states , the mission said in a news release . Queen Elizabeth is head of state for the United Kingdom , Antigua and Barbuda , Australia , the Bahamas , Barbados , Belize , Canada , Grenada , Jamaica , New Zealand , Papua New Guinea , Saint Kitts and Nevis , Saint Lucia , Saint Vincent and the Grenadines , the Solomon Islands and Tuvalu .
Queen Elizabeth II to address U.N. General Assembly in July . Queen last addressed U.N. in 1957 . Queen is head of state of 16 U.N. member states .