In the letter, seen by Euronews, the Polish president marked the ... on the leaders of all 31 other member states to expand their armies and support NATO at the upcoming summit in the Netherlands.

NATO Secretary-General Mark Rutte warned the United States and Europe on Wednesday against any temptation to "go it alone" on ...

WARSAW, Poland (AP) — NATO Secretary-General Mark Rutte warned ... would allow Russian President Vladimir Putin to rebuild his country’s forces and threaten other countries in the region ...

WARSAW, Poland (AP) — NATO Secretary General Mark Rutte said Wednesday that four U.S. soldiers who went missing while training in Lithuania have died, but that he did not yet know the details.

Neither Mr. Trump nor Vice President Vance are attending the European summit of NATO leaders at London this week ... backpedaled furiously Sunday following reports that one of their country’s largest ...

In Washington meanwhile, Trump reiterated his criticism of unequal defense spending among NATO ... the only country whose leader refused to sign Thursday’s Ukraine text at the summit, though ...