VLADIMIR PUTIN

Violence heated up in Ukraine after Petro Poroshenko was is elected president. And in Donetsk, leader Pushilin claimed his bus was blown up.

The stealth bombers had never been based in Europe before. Now, they sit just three hours from the Russian border.

In her new memoir, "Hard Choices," the former Secretary of State's views seem prescient on Russia, Syria and Egypt.

The swearing–in process follows Poroshenko’s meeting with Putin on Friday, with hints of a cease-fire.

The direct talks between the leaders are the first since the Ukrainian crisis erupted.

The informal meeting was the first in-person discussion between Obama and Putin since the Ukraine crisis began in March.

It's a busy week for the host of D-Day anniversary observances.

Western powers would check "again and again" to verify Russia was doing all it could to stabilize the Ukraine situation, Merkel said.

While the two leaders met in Poland, pro-Moscow rebels took over two Ukrainian military bases in Luhansk, following an air attack Monday.

President Obama is expected to meet Poroshenko and Putin during the World War II anniversary ceremonies in France later this week.

It's unclear whether a $786 million payment on Ukraine's $5.2 billion natural gas debt to Russia will stave off a cutoff of supplies.

The removal of the troops has come after multiple announcements by Russian President Vladimir Putin that he had ordered such a withdrawal.

The three-country trade bloc was more noteworthy for a nation it didn't include: Ukraine.

Emboldened by the takeover of Crimea, Russia's army wants to recruit 500,000 professionals in just three years, and is going hard at it.

Putin's statement has been seen as a sign that the Kremlin recognizes the legitimacy of the election in Ukraine.

Two days into his job, Ukraine's new president gets a hand from Europe, but he must keep Moscow happy, too.

Fighting continued into Tuesday while government forces tried to wrest control from rebel forces in Donetsk in the country’s east.

New president Poroshenko rejects negotiations with "terrorists."

Moscow said it was ready for dialogue with Petro Poroshenko but asked that he scale back his armed forces' campaign in the east.

The move would depend on the outcome of the independence referendum.

A large turnout is reported as a pro-European billionaire is declared the winner.