Porosheko: EU deal marks real historic day for Ukraine
27 June 2014 Last updated at 15:13 BST
Ukraine's president Petro Poroshenko has hailed the signing of an European partnership agreement as the country's most historic day since independence in 1991.
The pact - which binds Ukraine more closely to the West both economically and politically - is at the heart of the crisis in Ukraine.
Mr Poroshenko also explained the significance of the pen which he had used to sign the agreement.