As monarch, King Charles III is sure by constitutional conference to stay politically impartial. However that hasn’t stopped the UK authorities from deploying the king to advance its overseas coverage agenda.
Throughout their inaugural assembly, Keir Starmer offered Donald Trump with a letter from the king, inviting the president for a “actually historic” and “unprecedented” second state go to to the UK and a go to to the monarch’s personal Balmoral residence.
Later that week, the federal government organized for the king to meet Volodymyr Zelensky on the royal countryside retreat of Sandringham, to indicate help for the Ukrainian chief following his disastrous meeting with Trump.
The federal government is strolling a tightrope: it needs to keep away from tariffs from Trump, whereas persevering with to help Zelensky and Ukraine. And it’s utilizing the king to assist it achieve this.
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It isn’t uncommon for governments to make use of monarchs to spice up worldwide relations, significantly by way of state visits. The monarch has an enormous quantity of soppy energy and the pomp and ceremony of a state go to can assist governments obtain their overseas affairs goals.
State visits differ from common diplomatic visits: they’re probably the most formal manner wherein a overseas head of state can come to the UK, and occur simply a few times a 12 months.
Guests are greeted by the king and different members of the royal household with a ceremonial welcome accompanied by gun salutes on the Horse Guards Parade floor in London. They then journey again to Buckingham Palace in a carriage procession, the place they get pleasure from a proper state banquet at which the monarch toasts the visiting head of state.
State visits will not be low cost: Trump’s first go to value £3.5 million in policing alone. However they will play a key position in diplomacy.
A state visit to France by Queen Elizabeth II in 1972 helped seal the deal on the UK’s third try at becoming a member of the the European Financial Neighborhood. And in 2024, the UK’s defence partnership with Qatar was “strengthened” following the state go to of the Qatari emir.
There’s a hazard that the monarch’s fame is affected by internet hosting controversial heads of state. Little question the palace PR workforce is lower than enthused in regards to the prospect of Charles being seen wining and eating Trump. The optics of internet hosting Trump throughout his first state go to reportedly put the late Queen Elizabeth in a “very difficult position”.
However monarchs have little (if any) affect over who they host for a state go to. Charles may have been suggested by the federal government to ask Trump in accordance with the cardinal convention. This elementary constitutional precept requires the monarch to behave on the recommendation of the federal government.
Constitutional conventions will not be legally binding. However within the UK’s constitutional monarchy, the monarch reigns however doesn’t rule and energy is exercised by democratically-elected ministers quite than the sovereign. Failure by the monarch to comply with conference may spark a constitutional disaster, as fictional plays and dramas have lengthy imagined.

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This is the reason the late queen needed to host some controversial and less-than-democratic figures. It even as soon as led her to hide in a bush to keep away from encountering Romanian dictator Nicolae Ceaușescu within the Buckingham Palace gardens.
And it’s why Charles, on the federal government’s recommendation, will host Trump.
Laying on the royal appeal
Often, the general public doesn’t see invites for state visits, however we did see this explicit letter. Signed “Yours most sincerely, Charles”, it feels significantly private and designed to appeal Trump, whose love of the British royal family is well-known. The provide of a further go to to Balmoral is a nod to the president’s mother, who was born in Scotland.
The king’s invitation appears to have achieved the diplomatic trick. Trump ended his assembly with Starmer by stating: “I believe we may very effectively find yourself with an actual commerce deal the place the tariffs wouldn’t be necessary”.
However the go to received’t be with out controversy. Within the days since, a petition asking for Trump’s invitation to be withdrawn has reached practically 200,000 signatures. However Starmer has publicly dismissed calls to withdraw the invitation.
Little question Charles himself is lower than thrilled to ask the president, each after his latest behaviour in the direction of Zelensky and his resolution to drag the US from the Paris agreement, given the king’s advocacy on environmental points.
Might the king elevate such points with Trump? Charles is sure by the doctrine of political neutrality: he should chorus from appearing on political views. However that doesn’t imply there received’t be room for different senior royals not sure by the conference, like William, from doing so.
Certainly, as prince of wales, Charles himself confirmed opposition to controversial leaders, successfully boycotting Chinese state visits in 1999 and 2015 allegedly in help for the exiled Tibetan chief, the Dalai Lama.
The monarch performs an necessary diplomatic position, particularly throughout state visits. Whereas the leaders they host could also be controversial, the monarch should respect constitutional boundaries. Nonetheless, with an outspoken king and inheritor, this go to may show to be much more unprecedented than it already is.