"Just follow Poroshenko's example," the outgoing president said during a high-level conference for leaders of the European Union's Eastern Partnership countries in Brussels on Tuesday.
Poroshenko said Eastern Partnership countries for the next 10 years should cooperate more with the EU countries, as well as implement reforms.
"More reforms, more cooperation with the European Commission, with the European Council, with the European Union," Poroshenko said.
Poroshenko said energy security of the entire European continent, and not just the Eastern Partnership countries, should be a priority.
"I want to say that we need to believe that the next 10 years will be a success story, and maybe in 10 years we will gather here and say – yes, that's what happened. Two decades of the Eastern Partnership have been more successful than the first," he said.