ສະຖານະການ ໃນ ຢູເຄຣນ

U.S. fans cheers in the morning foursome matches during the 41st Ryder Cup at Hazeltine National Golf Club, Chaska, Minnesota. (Rob Schumacher-USA TODAY Sports)

A convoy from the Ukrainian armed forces, including armored personnel carriers, military vehicles and towed artillery pieces, begins to pull back from the Debaltseve region, in Blagodatne, eastern Ukraine, Feb. 27, 2015.

Ukraine President Petro Poroshenko visits the National Defense University in Kyiv, Feb. 27, 2015.

A priest bows as Russia-backed separatist fighters drive in a self-propelled 152 mm artillery piece, part of a unit that was moved away from the front lines, in Yelenovka, near Donetsk, Feb. 26, 2015.

A Russia-backed separatist fighter sits in a self-propelled 152 mm artillery piece, part of a unit that moved away from the front lines, in Yelenovka, near Donetsk, Feb. 26, 2015.

Russia-backed separatist fighters stand on self-propelled 152 mm artillery pieces, part of a unit that moved away from the front lines, in Yelenovka, near Donetsk, Ukraine, Feb. 26, 2015.

In a long-awaited development, Ukrainian forces and pro-Russian separatist fighters announced they are moving heavy weapons from the front line in eastern Ukraine. In this photo, a Ukrainian serviceman speaks with local schoolboys in the village of Chermalyk, eastern Ukraine,  Feb. 26, 2015.

Russian Foreign Minister Sergei Lavrov leaves the French Foreign Affairs Ministry following a meeting on a peace deal for Ukraine, in Paris, Feb. 24, 2015.

Ukrainian President Petro Poroshenko reviews his selfie with an Emirati media representative at the International Defense Exhibition and Conference, known as IDEX, in Abu Dhabi, United Arab Emirates, Feb. 24, 2015.