A military aircraft flies during a military parade in Thessaloniki, northern Greece, on Oct. 28, 2021. Amid COVID-19 restrictions especially in the northern part of the country, Greece celebrated the annual "Ochi (No) Day" on Thursday with military and student parades.Photo:Xinhua
Soldiers march during a military parade in Thessaloniki, northern Greece, on Oct. 28, 2021. Amid COVID-19 restrictions especially in the northern part of the country, Greece celebrated the annual "Ochi (No) Day" on Thursday with military and student parades.Photo:Xinhua
A boy with a Greek flag watches a military aircraft during a military parade in Thessaloniki, northern Greece, on Oct. 28, 2021. Amid COVID-19 restrictions especially in the northern part of the country, Greece celebrated the annual "Ochi (No) Day" on Thursday with military and student parades.Photo:Xinhua
Police march during a military parade in Thessaloniki, northern Greece, on Oct. 28, 2021. Amid COVID-19 restrictions especially in the northern part of the country, Greece celebrated the annual "Ochi (No) Day" on Thursday with military and student parades.Photo:Xinhua
Military aircraft fly during a military parade in Thessaloniki, northern Greece, on Oct. 28, 2021. Amid COVID-19 restrictions especially in the northern part of the country, Greece celebrated the annual "Ochi (No) Day" on Thursday with military and student parades.Photo:Xinhua