BENOUVILLE, France — After keeping his distance in an awkward diplomatic dance, President Barack Obama came together today with Russian President Vladimir Putin for a brief discussion on Ukraine, face to face for the first time since the crisis over Ukraine erupted earlier this year.

The roughly 15-minute conversation on the sidelines of a lunch for world leaders in France was casual and didn’t rise to the level of a formal bilateral meeting, the White House said.

Still, the surprise encounter, coupled with the news of the first meeting between Putin and Ukraine’s new president, offered new hopes for an easing of tensions in a crisis that’s revived East-West tensions left over from the last century.

The U.S. and Russia offered few immediate details about what transpired in the lunchtime chat on the sidelines of commemorations in Normandy marking the 70th anniversary of D-Day. But Putin’s spokesman, Dmitry Peskov, said the two had exchanged opinions about Ukraine and the situation in the nation’s restive east, where Ukrainian forces have been fighting with pro-Russian insurgents.

“Putin and Obama spoke for the need to end violence and fighting as quickly as possible,” Peskov said.

Only minutes earlier, Obama appeared to be dodging Putin deliberately as leaders attending the festivities posed for a group photo outdoors. Separated by three others — including Britain’s Queen Elizabeth II — Obama and Putin traded no words as the photographer snapped away.

Later, as leaders strolled casually into a nearby building for lunch, Obama winded up directly behind Putin and within arms-length, but averted his gaze, underscoring his reluctance to engage with the Russian leader he’s refused to meet with since Russia annexed Ukraine’s Crimean Peninsula in a sharp escalation of tensions.