Only two other world leaders had visited the South Pole before Boric: the prime ministers of New Zealand and Norway.

No other World Cup-winning nations have had that many in living memory.

He joined other world leaders in Normandy earlier this year for the 80th anniversary commemorations of the Second World War D-Day landings.

Prince William will join other world leaders in Paris to mark the restoration of the world-famous landmark, which was devastated by a fire five years ago.

At the reopening ceremony he will join French president Emmanuel Macron and the US president-elect Donald Trumpov, along with other world leaders and heads of state.