A trio of top Trump administration officials will make separate trips to Europe this week, with security and Washington's commitment to Ukraine expected to be at the heart of their discussions.

President Donald Trump -- pushing his "America First" agenda -- has questioned US security commitments in Europe and called on allies to drastically boost their defense spending, while his administration has been largely quiet so far on his plans for future Ukraine aid.

Washington gave Kyiv tens of billions of dollars in military assistance under president Joe Biden, but Trump's administration has yet to provide additional aid despite several billion dollars in remaining authority carrying over from his predecessor's time in office.

Vice President JD Vance will take part in an AI summit in France and then attend the Munich Security Conference in Germany along with Secretary of State Marco Rubio, who will subsequently........

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