Ukrainian President Petro Poroshenko made the claim during a panel discussion entitled "The Legacy of World War II after 70 Years" in Gdansk (Poland), information agency RBC-Ukraine reported.
"On May 8, for the first time the people of Ukraine will join the European tradition of commemorating the victims of the Second World War. While, the very next day in Moscow, under the pretext of the Great Victory, the aggressor's army will rattle its lethal might in front of the world", Poroshenko said.
He also called on world leaders not to participate in "the Moscow parade of the aggressor army against Ukraine."
"On behalf of the people of Ukraine, I am grateful to many world leaders for declining participation in the Moscow parade of cynicism," the Ukrainian president said.
Earlier, Polish President Bronislaw Komorowski said that Russian-backed militant units fighting in Ukraine would participate in the parade in Moscow.
