Trump’s envoy Marco Rubio faces European NATO allies amid tension over Greenland, Ukraine and the future of the alliance.

Has Trump put an end to NATO’s collective defense commitment? Not officially, but U.S. allies don’t seem confident the president will have their backs.

He said that President Trump had “a very good working relationship with Erdogan,” adding: “They are a NATO ally. We would like to cooperate with them in Syria and other places.” ...

BRUSSELS -- U.S. Secretary of State Marco Rubio and the Trump administration’s new envoy to NATO arrived Thursday in Brussels ...

Despite encouraging words from U.S. Secretary of State Marco Rubio, European allies and Canada remain concerned by President Donald Trump’s readiness to draw closer to Russian leader ...

Greenland, a huge, resource-rich island in the Atlantic, is a self-governing territory of Denmark, a NATO ally of the United ...

YOKOSUKA, Japan — The NATO chief on Tuesday raised concern about China's arms buildup and military drills near Taiwan and called on the organization's members and friendly nations to work ...

a NATO ally, the tariffs highlight long-term damage to American relations with Europe that are unlikely to ever be fully repaired. “The tariffs are another addition to the perception and ...