Ukrainian President Petro Poroshenko urged the international community to oppose Russian cyber aggression while encouraging the U.S. to lead on issues of global security, Reuters reported on Wednesday.

Poroshenko reportedly said that U.S. can "be great again" if it demonstrates leadership in opposing Russia's cyber threat.



"There is a global cyber war of Russia against [the] whole world, there is lots of evidence. This is a global danger and the world should be together to fight this danger," the Ukrainian leader said.



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Poroshenko also reflected on President-elect's statements about Ukraine, saying he believes the U.S. is likely to continue supporting the Eastern European nation."That gives us a lot more optimism for the future," he told Reuters while adding that he plans to meet Trump in the upcoming months.Ukraine has struggled to stabilize following Russia's invasion and subsequent annexation of the Crimean peninsula in 2014.Poroshenko has remained a strong critic of Moscow, and has urged the world community to assist Ukraine in its conflict with the pro-Russian forces."The same way as Russian propaganda is an element of Russian hybrid war, cyber is an element of the Russian hybrid war, no matter if it's in Germany or United States," he said.Poroshenko also underscored the importance of the NATO alliance in preventing Russia's aggressive geopolitical maneuvers."NATO, mainly this is not a question of money, it is a question of security. Russian aggression demonstrated again there is no other security system but NATO which was effective to stop the aggression," he told Reuters.Trump has previously questioned the effectiveness of NATO, calling it an "obsolete" international institution.