U.S. Reveals Once-Secret Support for Ukraine’s Drone Industry

The development of a new generation of drones has revolutionized how wars are fought, according to U.S. officials.

Trump Treasury Pick Scott Bessent to Face Grilling

Scott Bessent, President-elect Donald J. Trump’s choice to be Treasury secretary, will be in charge of steering the president’s economic agenda if confirmed by the Senate.

Rubio Is in Spotlight on Second Big Day of Cabinet Hearings

Senator Marco Rubio, who is nominated for secretary of state, has a long history of personal and policy differences with President-elect Donald Trump.

Greenland to Trump: Not for Sale but Let’s Talk Business

The country’s prime minister said that while Greenlanders do not want to become Americans, “the reality is we are going to work with the U.S. — yesterday, today and tomorrow.”

Biden Administration Adopts Rules to Guide A.I.’s Global Spread

New rules aim to keep advanced technology out of China and to ensure that cutting-edge artificial intelligence is developed by the United States and its allies.

Blinken and French Diplomat Criticize Trump’s Talk of Taking Greenland

In Paris, the two officials acknowledged potential strains on alliances with the return of Donald J. Trump to power, but said their countries would try to maintain strong ties.