US President Donald Trump has vowed to bring an end to the Russia-Ukraine war as he delivers his first major speech to world leaders remotely at the World Economic Forum in Davos, Switzerland.

Trump’s address has also touched on his call for more defence spending from NATO allies, as well as the threat of steep US tariffs and wars in the Middle East.

The speech comes amid a slew of executive action from Trump, who signalled plans to withdraw from the World Health Organization and the Paris climate agreement on his first day in office this week.

Domestically, the newly inaugurated president has moved quickly to crack down on immigration, expand energy production, and pardon more than 1,500 supporters who attacked the US Capitol on January 6, 2021.