King Charles III, Queen Camilla participate in ceremony at Arc de Triomphe

King Charles III and Queen Camilla took part in the rekindling of the Flame of the Unknown Soldier ceremony, alongside French President Emmanuel Macron and French First Lady Brigitte Macron, as part of the British monarch's first state visit to France.

The king’s three-day trip aimed at showing the fundamentals of the cross-Channel alliance remain strong despite a litany of political tensions after Brexit.

The trip was initially planned for March and was supposed to have been Charles' first state visit abroad since becoming monarch on the death of his mother Queen Elizabeth II.

But it was shelved due to widespread rioting and strikes across France against pension reforms.