In an unsanctioned mission, the Foreign Service officer helped evacuate about 200 South Vietnamese citizens from Saigon days before the city fell in 1975.

President Trump has outsourced much of his diplomacy to others, while Mr. Rubio focuses on his second job as national security adviser.

A jumble of emissaries — a friend, a family member, a dove and a hawk — on the Iran crisis reflects President Trump’s improvisational approach.

A draft State Department memo outlines ways the Trump administration may ratchet up pressure on the African country by ending health support “on a massive scale.”

The fee had been increased to $2,350 in 2015, prompting criticism and legal challenges from advocacy groups and Americans living abroad.

President Trump is tempering the political ambitions of María Corina Machado, a Nobel laureate, as he deepens ties with her foes in Venezuela.

France is highlighting its repatriation operations for nationals left stranded by the conflict with Iran.

The ordered departure of U.S. employees in the kingdom indicates that senior diplomats are bracing for a possible surge in violence in the war with Iran, officials say.

A motive for the explosion was unclear as of Sunday morning, but the police were investigating and said it appeared to be a “targeted attack.”

For the past two decades, Bolivia resisted U.S. influence. A rightward shift is reorienting the country’s president toward Washington.

James Luckey-Lange, 28, wrote about kindness and shared humanity as he traveled. But he said he had been shackled, starved and beaten in Venezuela after being detained.