King Charles III and Queen Camilla are set to arrive in Canada for a two-day visit, a journey perceived as a show of solidarity with the nation in light of recent controversial remarks from US President Donald Trump. Prime Minister Mark Carney, who recently gained office amidst a wave of anti-Trump sentiment, extended the royal invitation which includes a meeting during their stay in the capital, Ottawa.

The King is scheduled to deliver the "Speech from the Throne" to Canada's Parliament on Tuesday, marking a significant moment as it will be the first time in almost half a century that a monarch has performed this duty. This speech is anticipated to champion Canada’s sovereignty, directly countering Trump’s implications that Canada should become the 51st state of the US.

As part of the royal visit, there will be a ceremonial welcome at the airport on Monday, along with planned meetings with community groups, notably including leaders from Canada’s First Nation communities. The King will also meet with Mary Simon, the first Indigenous Governor General of Canada.

This visit marks the first trip to Canada for King Charles and Queen Camilla since their reign commenced, as a previous visit was postponed due to the King's health concerns. The King's address is expected to present robust affirmations of Canadian identity and independence while echoing Prime Minister Carney's recent statements that Canada is "not for sale."

Former Canadian high commissioner to the UK, Jeremy Kinsman, remarked on the significance of the visit, expressing confidence that the King will take pride in asserting Canada’s sovereignty during his speech. As the speech is drafted in consultation with Canadian government officials, it will be delivered in both French and English, similar to the King’s duties at the UK’s State Opening of Parliament.

In terms of royal protocol, the King is likely to wear a suit, opting for a more understated style compared to the grandeur typically associated with such events in the UK. The brief engagement will also involve community outreach and interactions with local leaders, reflecting a careful diplomatic balance as the King serves both as Canada's and the UK's head of state.

This visit highlights the complex interplay of international relations, where the King navigates his roles, maneuvering between the expected diplomatic warmth towards the US and the need to affirm Canada's independence in response to Trump’s provocative assertions. A royal source indicated the King's extensive experience and diplomatic acumen would be crucial in managing this unique situation.