Ukraine conflict: How we got here - in two minutes
3 September 2014 Last updated at 17:00 BST
Russia's president has said he is hoping for a peace deal between Ukraine and pro-Russian rebels.
Vladimir Putin urged both sides to stop military action in eastern Ukraine, adding that his views and those of his Ukrainian counterpart were very close.
Ukraine President Petro Poroshenko said they had agreed a "ceasefire process" but PM Arseny Yatsenyuk said no plan from Mr Putin should be trusted.
Tim Willcox explains how we got here - in two minutes.