Donald Trump reaffirms US commitment to Nato
Donald Trump has reaffirmed his commitment to Nato in a speech in Warsaw, Poland.
Mr Trump said the US "has demonstrated not merely with words, but with its actions, that we stand firmly" behind Article 5, "the mutual defence commitment".
He said: "Words are easy, but actions are what matters."
Mr Trump was criticised during his first foreign trip for failing to explicitly affirm his commitment to the mutual defence of Nato members during a critical speech at the organisation's headquarters in Brussels.
Article 5 says an attack on one member is an attack on all members and binds the allies to go to that country's defence.
It has only been invoked once, after the September 11 terrorist attacks in 2001.
Mr Trump praised his hosts for honouring their spending commitment to Nato, saying: "The example you set is truly magnificent."
He added that Poland is "now among the most committed members of the Nato alliance" and "has resumed its place as a leading nation of a Europe that is strong, whole and free".
Poland is one of the five Nato members that spends at least 2% of gross domestic product on the military, as Mr Trump has urged.