The departures are common when a transition takes place, but it is now happening more quickly and on a larger scale than under previous administrations, a U.S. official said.

President-elect Donald J. Trump has made big promises on Ukraine, Iran, China and crises around the globe. But he will have to make difficult choices.

President Biden’s longtime aide rallied scores of nations to defend Ukraine, but then became a villain to the many critics of U.S. support for Israel’s war in Gaza.

Citizens of Israel, the United States, Britain, Mexico, Thailand and other countries were among about 250 people abducted in the Oct. 7, 2023 raids into Israel.

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

The move allows hundreds of thousands of people from Sudan, Ukraine, El Salvador and Venezuela to stay in the country temporarily.

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.

A force fighting Sudan’s army in a brutal civil war committed massacres and rape that amount to genocide, the Secretary of State said, two decades after a finding of genocide in the same region.

The U.S. secretary of state aimed to show that his country stood by South Korea as it grapples with a political crisis, and as Donald J. Trump returns to power.

At the end of a tenure marked by war and division, the outgoing secretary of state defends his legacy on Gaza and Ukraine and says he’s made America stronger.