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Italian President Sergio Mattarella on Sunday attended Greece's annual military parade commemorating Greece's entry into World War II — against Italy.

Mattarella appeared at the parade in Thessaloniki, northern Greece, at the invitation of Greek President Prokopis Pavlopoulos, who later hailed his counterpart's presence.

"We are leaving behind what divided us. We are determined to defend Europe from ... the forces of populism and racism, bordering on Nazism, that want to destroy Europe," Pavlopoulos said. "(We are) determined never to let the revival of the nightmares that led to World War II happen again."

Italy invaded Greece on Oct. 28, 1940, from neighboring Albania, which it had occupied the previous year. The Italians expected a swift advance but were soon beaten back deep into Albania by the Greeks. The front stabilized by December and a major Italian spring offensive failed, prompting Germany to invade and occupy Greece, and Yugoslavia, in April 1941.

The two presidents will travel later Sunday to the island of Kefalonia, in western Greece, the site of a massacre of an Italian division by the Germans in September 1943, after Italy surrendered to the Allies.

Greek police on Sunday kept at bay a small crowd of protesters who wanted to march and protest the name change deal signed by Greece and Macedonia in July resolving a long-standing dispute over Macedonia's name.

Some reservist units taking part in the parade shouted "Macedonia is Greek!" while marching past the VIP stand.

Thessaloniki, Greece's second-largest city, is the capital of the Greek province of Macedonia. Greece had long objected to its neighbor to the north naming itself Macedonia on the grounds that the name implied territorial claims on the Greek province, as well as being an appropriation of Greek history and symbols.

Macedonia plans to change its name to North Macedonia so it can finally move past Greek objections and join NATO.

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