STOCKHOLM—Yemen’s warring sides agreed to free thousands of prisoners on Dec. 6, in what a U.N. mediator called a hopeful start to the first peace talks in years to end a war that has pushed millions of people on the verge of starvation.
U.N. mediator Martin Griffiths told a news conference in a renovated castle outside Stockholm that just getting the warring sides to the table was an important milestone.





