President Donald Trump's Davos forum speech isn't expected to be delayed despite his late arrival in Switzerland after a small electrical issue aboard Air Force forced a return to Washington to swap aircraft.

Trans-Atlantic Tensions: President Trump is expected to speak on Wednesday at the World Economic Forum in Davos, Switzerland, as his aggressive push to acquire Greenland and threats of new tariffs strain U.S.-European ties. NATO’s secretary general and the leaders of Spain and Finland will also address the gathering. Read more ›

President Donald Trump threatens tariffs on European allies at Davos World Economic Forum as tensions rise over trade deals and his demands to acquire Greenland from Denmark.

The chancellor says the UK "would not be buffeted around"; meanwhile an EU chief says Europe is prepared to act "with urgency".

Rolling coverage of the World Economic Forum in Davos

And now the president is ready to set a bunch of new houses on fire. The president will speak at the World Economic Forum in Davos, Switzerland, tomorrow, and he appears prepared to shatter the nearly 80-year-old NATO alliance in order to seize Greenland.

Trump’s Davos speech on Wednesday will follow thinly veiled denunciations of him by world leaders at the conference

Denmark was a committed partner to the U.S. during the war in Afghanistan, deploying thousands of troops, and made early contributions to the invasion of Iraq.