Petro Poroshenko is to be sworn in as president of Ukraine, after his victory in the May 25 poll.
Yesterday, he met with Russian President Putin briefly at D-Day commemorations, saying it could be the start of dialogue between the countries.
More top news
President Barack Obama recorded a video urging for more to be done to protect the landscape from the effects of climate change.
David Cameron is facing growing pressure for the UK to take in more of the many thousands of migrants fleeing to Europe.
China has put on its biggest display of military might in a parade to commemorate victory over Japan in World War Two.