Thirty-one countries work seamlessly together in the NATO exercise Trident Juncture, which simulates the invasion of a European ally.
President Trump called NATO "very powerful" and "very strong" after a summit where allies agreed to shoulder more of the collective defense burden.
President Trump, in a meeting with NATO Secretary General Jens Stoltenberg, applauded allies' increased spending on defense and praised the U.S.-NATO relationship.
President Trump and German Chancellor Angela Merkel discussed trade differences but agreed on the need for the U.S. and European allies to face global challenges together.
The Patriot missile-defense system has always proved effective. Poland just purchased the system from the U.S. as part of a package worth $4.6 billion.
Rex Tillerson highlighted U.S. alliances in a weeklong trip to Europe. Here are the highlights from London, Paris, Davos and Warsaw.
Secretary of State Rex Tillerson, in Brussels, says the U.S. and its NATO allies stand united on stopping terrorism and confronting other global problems.
Defense spending by NATO members to protect freedom is growing in response to Russian aggression, cyber attacks and terrorism.
Secretary of State Rex Tillerson highlights the importance of a strong trans-Atlantic partnership in the face of new and renewed threats.