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.
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