Trump 'has made it very clear' that he expects Moscow to return Crimea to Ukraine, in a departure from opinions he has previously expressed.
Renewed violence has flared between Moscow-backed rebels and Ukraine government forces that has caused the highest casualty rate since mid-December.
Ukraine and NATO accuse the Kremlin of supporting the rebels with troops and weapons, which it denies.
Ukraine's Petro Poroshenko told reporters that sanctions remained the only way to keep Putin at the negotiating table over the crisis in eastern Ukraine.
Ukrainian Foreign Ministry accused Russia of 'acts of terrorism and discrimination in the course of its unlawful aggression' in the filing to the International Court of Justice.
According to Brazilian police an Italian member of an international socialist group called Misanthropic Division was recruiting youngsters to fight in Ukraine.
Le Pen's office dismissed the threat, saying she had no intention of visiting Ukraine.
'In 2017 we will defeat the invaders and send them back where they came from. To Vladimir Putin - you will never defeat the Ukrainian people and deprive them of their independence and freedom,' McCain said.
The decision was made in light of Ukraine's vote in favor of a resolution condemning Israeli settlements, senior official says.
Israeli politicians call on Ukrainian authorities to investigate the desecration of rabbinical sage's grave after worshipers find pig's head adorned with swastika.