Russian President Vladimir Putin speaks during his news conference at the Normandy Barriere hotel in Deauville, after the international D-Day commemoration ceremony in Ouistreham in Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / YURI KADOBNOV

TOPSHOTS Russian President Vladimir Putin speaks during his news conference at the Normandy Barriere hotel in Deauville, after the international D-Day commemoration ceremony in Ouistreham in Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / YURI KADOBNOV

Russian President Vladimir Putin gestures as he speaks to the media after the commemoration of the 70th anniversary of the D-Day in Ouistreham, western France, Friday, June 6, 2014. Putin on Friday spoke for the first time with Ukraine's president-elect, praising his intention to end the violence that has engulfed eastern Ukraine and urging an immediate cease-fire. Speaking to reporters in Normandy in remarks televised live on Russian television, Putin said he expects Petro Poroshenko, who is to be sworn for office on Saturday, to show "good will" and "state wisdom." (AP Photo/Alexander Zemlianichenko)

Russian President Vladimir Putin speaks to the media after the commemoration of the 70th anniversary of the D-Day in Ouistreham, western France, Friday, June 6, 2014. Putin on Friday spoke for the first time with Ukraine's president-elect, praising his intention to end the violence that has engulfed eastern Ukraine and urging an immediate cease-fire. Speaking to reporters in Normandy in remarks televised live on Russian television, Putin said he expects Petro Poroshenko, who is to be sworn for office on Saturday, to show "good will" and "state wisdom." (AP Photo/Alexander Zemlianichenko)

Russian President Vladimir Putin gestures as he speaks to the media after the commemoration of the 70th anniversary of the D-Day in Ouistreham, western France, Friday, June 6, 2014. Putin on Friday spoke for the first time with Ukraine's president-elect, praising his intention to end the violence that has engulfed eastern Ukraine and urging an immediate cease-fire. Speaking to reporters in Normandy in remarks televised live on Russian television, Putin said he expects Petro Poroshenko, who is to be sworn for office on Saturday, to show "good will" and "state wisdom." (AP Photo/Alexander Zemlianichenko)

Paris, France - June 5th, 2014 - The French Head of State Francois Hollande receives Russian President Vladimir Putin at Elysee Palace.

Russia's President Vladimir Putin attends a meeting in the city of Ivanovo. 254 km (158 miles) east of Moscow, on May 26, 2014. Putin called today for an immediate end to what he described as a "punitive" operation by military forces in east Ukraine and for talks between Kiev and pro-Moscow rebels. AFP PHOTO/ RIA-NOVOSTI/ POOL /ALEXEY DRUZHININ

Russia's President Vladimir Putin speaks during a meeting at the Kremlin in Moscow, on May 27, 2014. Putin called today for an immediate end to what he described as a "punitive" operation by military forces in east Ukraine and for talks between Kiev and pro-Moscow rebels. AFP PHOTO/ RIA-NOVOSTI/ POOL /ALEXEY DRUZHININ

Russia's President Vladimir Putin looks on in Saint Petersburg, on May 23, 2014, during his meeting with Mongolia's Prime Minister Norovyn Altankhuyag on the sidelines of the St. Petersburg International Economic Forum 2014 . Putin said yesterday he would respect the choice of the Ukrainian people in Sunday's presidential vote but that ousted ex-leader Viktor Yanukovych technically remained in power. AFP PHOTO/ RIA-NOVOSTI/ POOL / MIKHAIL KLIMENTYEV

Russia's President Vladimir Putin speaks at an economic forum in Saint Petersburg, on May 23, 2014. Putin said today that the crisis in Ukraine had evolved into a full-scale civil war, blaming Washington for backing the overthrow of former president Viktor Yanukovych. AFP PHOTO/ RIA-NOVOSTI/ POOL / MIKHAIL KLIMENTYEV

Russia's President Vladimir Putin attends an economic forum in Saint Petersburg, on May 23, 2014. Putin said today that the crisis in Ukraine had evolved into a full-scale civil war, blaming Washington for backing the overthrow of former president Viktor Yanukovych. AFP PHOTO/ RIA-NOVOSTI/ POOL / MIKHAIL KLIMENTYEV

Russia's President Vladimir Putin attends an economic forum in Saint Petersburg, on May 23, 2014. Putin said today that the crisis in Ukraine had evolved into a full-scale civil war, blaming Washington for backing the overthrow of former president Viktor Yanukovych. AFP PHOTO/ RIA-NOVOSTI/ POOL / MIKHAIL KLIMENTYEV

Russia's President Vladimir Putin speaks at the St. Petersburg International Economic Forum 2014 (SPIEF 2014) in St. Petersburg on May 23, 2014. Putin pledged today to respect the outcome of Ukraine's presidential election but warned that the country had descended into all-out civil war after a bloody upsurge in separatist violence. AFP PHOTO / OLGA MALTSEVA

Russia's President Vladimir Putin speaks at the St. Petersburg International Economic Forum 2014 (SPIEF 2014) in St. Petersburg on May 23, 2014. Putin pledged today to respect the outcome of Ukraine's presidential election but warned that the country had descended into all-out civil war after a bloody upsurge in separatist violence. TOPSHOTS/AFP PHOTO / OLGA MALTSEVA

Russia's President Vladimir Putin speaks by phone with farmer Alexander Kuksenko from an office somewhere in the undisclosed location in the Amur Region, on May 22, 2014. Putin announced earlier this week that Russian troops near the Ukraine border, estimated by NATO to number 40,000, were to return to bases after the end of spring exercises. AFP PHOTO/ RIA-NOVOSTI/ POOL / ALEXEY DRUZHININ

Russia's President Vladimir Putin speaks by phone with farmer Alexander Kuksenko at an office somewhere in the undisclosed location in the Amur Region, on May 22, 2014. Putin announced earlier this week that Russian troops near the Ukraine border, estimated by NATO to number 40,000, were to return to bases after the end of spring exercises. AFP PHOTO/ RIA-NOVOSTI/ POOL / ALEXEY DRUZHININ

Russia's President Vladimir Putin attends an informal meeting of the Collective Security Treaty Organization (CSTO) at the Kremlin in Moscow, on May 8, 2014. AFP PHOTO / POOL/ SERGEI KARPUKHIN

Russian President Vladimir Putin attends a news conference after a meeting with Swiss President and Foreign Minister Didier Burkhalter at the Kremlin in Moscow, on May 7, 2014. Putin called on separatists in east Ukraine on Wednesday to postpone a referendum on independence for the mostly Russian-speaking region and said Moscow had withdrawn troops from the border with Ukraine. AFP PHOTO / POOL / SERGEI KARPUKHIN

Russia's President Vladimir Putin waves during a meeting with Royal Dutch Shell CEO Ben van Beurden in the Novo-Ogaryovo residence outside Moscow, on April 18, 2014. The chief executive of Anglo-Dutch energy giant Royal Dutch Shell Ben van Beurden met today President Vladimir Putin at his private residence, telling the Russian strongman that the company wanted to expand its operations in Russia. The European Parliament called on yesterday for the EU to reinforce sanctions on Russia over the Ukraine crisis and be prepared to target economic interests. AFP PHOTO/ POOL / MAXIM SHIPENKOV

Russian President Vladimir Putin meets with Royal Dutch Shell's CEO Ben Van Beurden in the Novo-Ogaryovo residence outside Moscow, Russia, Friday, April 18, 2014. (AP Photo/Maxim Shipenkov, Pool)