India, May 27 -- In a stark warning on Tuesday during a rare address to the Canadian Parliament, King Charles III declared that Canada faces "unprecedented challenges" in a world "never more dangerous," a remark that can be seen as to be signalling unity and sovereignty amid provocative annexation rhetoric from US President Donald Trump.

The monarch's speech - only the third such throne speech delivered by a British sovereign in Canadian history - was prompted by repeated suggestions from Donald Trump that the United States should annex its northern neighbour and make it America's 51st state.

In response, Prime Minister Mark Carney invited Charles to deliver the ceremonial address outlining the government's legislative priorities for th...