Ukraine paid the highest possible price to realise its "European dreams", the country's president has said, as he signed an agreement with the EU.
Former president Viktor Yanukovich's decision to turn down an EU agreement last November in favour of closer ties with Russia sparked widespread protests and eventually led to his overthrow.
Russia subsequently annexed Ukraine's Crimea region, and pro-Russian separatists declared independence in eastern Ukraine.
"Over the last months, Ukraine paid the highest possible price to make her European dreams come true," Petro Poroshenko told EU leaders at a signing ceremony in Brussels.
More top news
Paul Burrell, the former butler to Princess Diana, will enter the Celebrity Big Brother house tonight as part of a new task.
Simon Cowell has the Overs category while Cheryl Fernandez-Versini will be mentoring the Groups.
The author of the new James Bond novel has apologised after he said that British actor Idris Elba is "too street" to play the spy.