NATO Secretary General Mark Rutte, the former Dutch prime minister, referred to Trump as "daddy" during the alliance's annual summit in June. But Trump's own administration has also called him "daddy" in recent months, raising questions about the origins of the president's nickname.

NATO Secretary General Mark Rutte has praised Trump's efforts to end Russia's war in Ukraine, the deadliest conflict in Europe since World War II.

Mark Rutte's comments come a day after Putin rejected US proposals for peace in Ukraine after talks with US negotiators in Moscow.

President Donald Trump met with NATO Secretary-General Mark Rutte Wednesday — days after Ukrainian President Volodymyr Zelenskyy visited the White House and after calling off a meeting with Russian President Vladimir Putin. "We canceled the meeting with ...

The Prime Minister said there were a ‘number of issues still to be resolved’ but dismissed suggestions his optimism had been frayed.