PARIS, Dec. 10 (Xinhua) -- French President Emmanuel Macron welcomes German Chancellor Angela Merkel as she arrives at the Elysee Presidential Palace to attend a summit on Ukraine in Paris, France, Dec. 9, 2019. Ukraine and Russia agreed on a full and comprehensive implementation of the ceasefire in eastern Ukraine before the end of 2019, leaders of Russia, Ukraine, France and Germany announced in Paris on Monday evening following their talks called Normandy four summit.

PARIS, Dec. 10 (Xinhua) -- French President Emmanuel Macron welcomes Russian President Vladimir Putin as he arrives at the Elysee Presidential Palace to attend a summit on Ukraine in Paris, France, Dec. 9, 2019. Ukraine and Russia agreed on a full and comprehensive implementation of the ceasefire in eastern Ukraine before the end of 2019, leaders of Russia, Ukraine, France and Germany announced in Paris on Monday evening following their talks called Normandy four summit.

PARIS, Dec. 10 (Xinhua) -- Ukrainian President Volodymyr Zelensky, French President Emmanuel Macron, Russian President Vladimir Putin and German Chancellor Angela Merkel (L to R) attend Normandy four summit in Paris, France, Dec. 9, 2019. Ukraine and Russia agreed on a full and comprehensive implementation of the ceasefire in eastern Ukraine before the end of 2019, leaders of Russia, Ukraine, France and Germany announced in Paris on Monday evening following their talks called Normandy four summit.