Kyiv is trying to hammer out concessions from Moscow and iron-clad security guarantees from its allies to end the war as Russia appears to dig in on territorial claims.
Without the New START treaty, which caps the number of deployed nuclear warheads at 1,550 on each side, there will be no limits on the U.S. and Russian arsenals.
In a call with President Donald Trump, Chinese leader Xi Jinping stressed his country's claims to the island democracy, suggesting it could become a bigger issue in U.S.-China relations.
Video from Nasser Hospital in Khan Younis captured the anguish of a bereaved father whose two young daughters had been killed by an Israeli strike on a tent camp for displaced civilians.
Billionaire co-founder of Microsoft Bill Gates said accusations concerning drugs and an extramarital affair were not true, and that he regrets ever knowing Jeffrey Epstein.
Attacks and the escalating death toll have rocked the U.S.-backed truce and caused Palestinians in the Strip to say it does not feel like the war has ended.
A stitching mistake that turned a smile upside down on a plush toy for the Year of the Horse has won the hearts of people in China who say it matches their vibe.
Austin Appelbee, a 13-year-old boy, swam 2.5 miles to rescue his mother and two younger siblings after their family was swept out to sea off the coast of Australia. NBC News' Jesse Kirsch has the details on the heroic rescue.