The sanctions sharply escalate tensions with the leftist leader of a country that has traditionally been one of the closest U.S. allies in South America.

In Brazil's coffee-producing areas, more than 42,000 square miles of forest have disappeared over about two decades, says Coffee Watch. Deforestation leads to drought, which harms crop yields.

Argentina's libertarian president, Javier Milei, faces midterms amid economic chaos and a $20 billion lifeline offer from President Trump.

In 1812, hundreds of thousands of men in Napoleon's army perished during their retreat from Russia. Researchers now believe a couple of unexpected pathogens may have helped hasten the soldiers' demise.

President Trump imposed new sanctions on Russia and cancelled a summit with President Putin, hoping to pressure Moscow to agree to a ceasefire in Ukraine. But Putin appears not too concerned.

Life is slowly returning to Gaza City in the ceasefire, even as many worry war could return.

A youth orchestra in the Kyiv region composes a symphonic poem recreating the sound of wartime nights in Ukraine.

Ontario Premier Doug Ford says he's pulling the TV ad that caused President Trump to say he was ending trade negotiations with Canada. The ad used former President Ronald Reagan's words to criticize U.S. tariffs.

U.S. chess grandmaster Daniel Naroditsky died this week at age 29. Former world champion Vladimir Kramnik had accused Naroditsky, among others, of cheating in the sport.

Ukrainian President Volodymyr Zelenskyy meets with European Union leaders as they prepare massive new financing for Kyiv's war effort.