In a free-wheeling speech to world leaders at the World Economic Forum in Davos, Switzerland, President Trump made a series of contested claims.
Trump touched on his desire to obtain Greenland from Denmark - which he referred to as a small ask, America's contribution to NATO, and wind energy in China.
His address - which lasted for more than an hour - contained a number of false assertions which BBC Verify has been looking at.
Did the US 'give Greenland back' after World War Two?
For weeks, Trump has spoken about his desire to acquire Greenland, a largely self-governing territory of Denmark. He has said it is critical to US national security.
At Davos, he said that after World War Two we gave Greenland back to Denmark, adding: How stupid were we to do that? However, it was not America's to give back. In 1933, an international court ruled that Greenland belonged to Denmark.
In 1941, the US and Danish representatives signed an agreement allowing the US to defend Greenland to prevent the Nazis from taking it over, leading to the construction of US bases on the island without involving a transfer of sovereignty.
Is the US paying for 'virtually 100%' of NATO's defence?
The US president criticized NATO and claimed that the United States was paying for virtually 100% of NATO expenses. This is inaccurate as US spending on defense accounted for about 70% of the total spent by NATO countries in recent years, with a forecasted decrease.
Has the US got nothing back from NATO?
Trump claimed that the US had never gotten anything from NATO. Contrarily, NATO's principle of collective defense was invoked only by the US in response to the 9/11 attacks, leading to a cooperative military effort in Afghanistan.
Does China have no wind farms?
Trump criticized wind energy, focusing on China and claiming he had not been able to find any wind farms in China. This assertion is misleading; China operates one of the largest wind farms globally in Gansu, visible from space.
Does the UK take 92% of North Sea oil revenue?
When discussing energy policies, Trump made the erroneous claim that the UK takes 92% of North Sea oil revenues. In reality, North Sea oil and gas firms pay a 30% corporation tax and a supplementary 10% rate, totaling 78% on profits—not revenues.
Has Trump secured $18 trillion worth of investments for the US?
Trump claimed to have secured $18 trillion in commitments for investments, but there is no public evidence supporting this number; official records show approximately $9.6 trillion in actual secured investments.
This fact-check highlights the importance of evaluating the accuracy of statements by public officials, especially concerning crucial topics that shape international relations and national policies.
