Securing an end to the fighting in Ukraine must take place with Kyiv's full involvement and come with more defense spending by regional countries to avoid any future Russian aggression, according to Lithuania's president.

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.

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