People watch a military parade held in the northern port city of Thessaloniki, Greece, Oct. 28, 2019. Greece celebrated its national Ohi Day on Monday. The Ohi Day, or "Anniversary of the No," commemorates the rejection by then Greek Prime Minister Ioannis Metaxas on Oct. 28, 1940, of the ultimatum made by Italy to surrender Greece to the Axis forces. (Photo by Dimitris Tosidis/Xinhua)