Queen Elizabeth II and Indian President Pratibha Patil at Buckingham Palace, London, October 2009
Shaun Curry / Reuters There are few points of comparison for a head of state who remains in office for seven decades. In June 2022, Queen Elizabeth II, who died on September 8, surpassed even Thailand’s King Bhumibol Adulyadej to become the longest-reigning monarch in the industrial era. Only Louis XIV of France, who ruled for 72 years in the seventeenth and early eighteenth centuries, spent more time on the throne. All the more remarkable, during these decades as sovereign she weathered extraordinary upheavals in British foreign policy—from decolonization to the war on terror, from the rise of the European Union to Brexit—that few
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