what countries does queen elizabeth ii reign?
Queen of Tuvalu Queen of the United Kingdom Queen of New Zealand Queen of the Bahamas Queen of Antigua and Barbuda Queen of Australia Queen of Jamaica Queen of Barbados Queen of Canada
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 Thus since 1937 , the monarch has been simultaneously crowned as sovereign of several independent nations besides the United Kingdom , known since 1953 as the Commonwealth realms . Elizabeth II was asked , for example : " Will you solemnly promise and swear to govern the Peoples of the United Kingdom of Great Britain and Northern Ireland , Canada , Australia , New Zealand , the Union of South Africa , Pakistan and Ceylon , and of your Possessions and other Territories to any of them belonging or pertaining , according to their respective laws and customs ? " 

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 From Elizabeth 's birth onwards , the British Empire continued its transformation into the Commonwealth of Nations . By the time of her accession in 1952 , her role as head of multiple independent states was already established . In 1953 , the Queen and her husband embarked on a seven @-@ month round @-@ the @-@ world tour , visiting 13 countries and covering more than 40 @,@ 000 miles by land , sea and air . She became the first reigning monarch of Australia and New Zealand to visit those nations . During the tour , crowds were immense ; three @-@ quarters of the population of Australia were estimated to have seen her . Throughout her reign , the Queen has made hundreds of state visits to other countries and tours of the Commonwealth ; she is the most widely travelled head of state . 

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 Most former British colonies and protectorates are among the 53 member states of the Commonwealth of Nations , a non @-@ political , voluntary association of equal members , comprising a population of around 2 @.@ 2 billion people . Sixteen Commonwealth realms voluntarily continue to share the British monarch , Queen Elizabeth II , as their head of state . These sixteen nations are distinct and equal legal entities – the United Kingdom , Australia , Canada , New Zealand , Papua New Guinea , Antigua and Barbuda , The Bahamas , Barbados , Belize , Grenada , Jamaica , Saint Kitts and Nevis , Saint Lucia , Saint Vincent and the Grenadines , Solomon Islands and Tuvalu . 

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 Elizabeth 's many historic visits and meetings include a state visit to the Republic of Ireland and reciprocal visits to and from the Pope . She has seen major constitutional changes , such as devolution in the United Kingdom , Canadian patriation , and the decolonisation of Africa . She has also reigned through various wars and conflicts involving many of her realms . She is the world 's oldest reigning monarch as well as Britain 's longest @-@ lived . In 2015 , she surpassed the reign of her great @-@ great @-@ grandmother , Queen Victoria , to become the longest @-@ reigning British monarch and the longest @-@ reigning queen regnant in world history . 

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 The monarch of the United Kingdom is also the monarch of the fifteen other Commonwealth realms , none of which are in Europe . Some of these realms have significant levels of support for republicanism . 
