Ken Stanford

After being buried under more than a foot of snow, parts of the Rockies and Upper Midwest were getting their first icy touch of arctic air on Tuesday. And the rest of the Midwest and the East are expecting a dose later in the week, with temperatures forecast as much as 40 degrees below average.

The 15th annual International Intercollegiate Mediation Tournament came to a close Saturday with the host school, Brenau University, taking the top spot in the mediation team category.

Iraqi officials said Sunday that the head of the Islamic State group, Abu Bakr al-Baghdadi, was wounded in an airstrike in western Anbar province. Pentagon officials said they had no immediate information on such an attack or on the militant leader being injured.

Tensions between the major powers have pushed the world closer to a new Cold War, former Soviet leader Mikhail S. Gorbachev said Saturday.

Germany marked the 25th anniversary of the fall of the Berlin Wall Sunday, with German Chancellor Angela Merkel honoring those who died trying to escape over the wall from East Germany and paying tribute to those who helped bring down the Wall, calling its collapse an example of the human yearning for freedom.

His influence at home fading, President Barack Obama is looking abroad to China, the opening stop of a three-country trip that will test his ability to play a commanding global role during his final two years in office.