French President Francois Hollande has invited Ukrainian President-elect Petro Poroshenko to attend D-Day commemorations in France next week, Reuters reports.
Several world leaders are expected to attend the event.
Hollande has already invited Russian President Vladimir Putin to attend the ceremony and Putin has accepted.
The D-Day ceremony will be held on June 6, marking the 70th anniversary of the allied landings at Normandy during World War II.
Putin will also discuss the crisis in Ukraine at talks with French President Francois Hollande in Paris on June 5, the Kremlin said on Wednesday.
"On the evening of June 5 ... the presidents of the two countries will hold talks on fundamental international and bilateral issues, including the Ukraine crisis," said Kremlin foreign policy aide Yuriy Ushakov.