Lithuania and Estonia have become the first NATO members to pledge an increase in defense spending to five percent of GDP, according to a report by the Financial Times.Lithuanian Foreign Minister Kestutis Budrys and Estonian Prime Minister Kristan Michal confirmed their countries' commitment to strengthening defense capabilities in response to regional security concerns,

NATO Secretary-General Mark Rutte and Danish Prime Minister Mette Frederiksen agreed at a meeting on Tuesday that allies need to focus on strengthening defences in the Arctic, a source familiar with the talks told Reuters.

The more Donald Trump talks about the NATO alliance, the greater the concerns about his commitment to the international partnership.

President also plans to ask for "financial contribution" for maintenance of remaining troops, European diplomatic source said.

President Donald Trump said he was open to potentially rejoining the World Health Organization (WHO), just days after signing an executive order withdrawing the U.S. from participating.

U.S. President Donald Trump said on Thursday he was not sure the United States should be spending anything on NATO, telling reporters the U.S. was protecting NATO members, but they were "not protecting us.

The call did not go well and Trump was aggressive and confrontational with Danish Prime Minister Mette Frederiksen, FT reported.

Congress passed legislation that a president cannot unilaterally withdraw from NATO, setting up a major legal fight if Trump tries to pull the US out.

Europe’s military heavyweights have already said that meeting President Donald Trump’s potential challenge to spend up to 5% of their economic output on security would be challenging

Denmark said on Monday it would spend 14.6 billion Danish kroner ($2.05 billion) boosting its military capabilities in the Arctic – a decision that comes amid continuing furor following US President Donald Trump’s renewed interest in controlling Greenland,

Colombia did an about-face at lightning-fast speed on accepting deportation flights in what President Donald Trump hailed as a victory for his "f--- around and find out" [FAFO] style of governing.