Hellenic Air Force fighter jets and helicopters are to fly over the capital at 11.45 on Monday as a practice run ahead of the traditional military parade on March 25 national holiday.
The annual parade marks the anniversary of Greek independence from Ottoman rule.
The practice run is expected to last just a few minutes.
A Turkish district has marked its anniversary of freedom from invasion with a parade of hunted boars, causing outrage among animal rights activists.
Approximately 3,500 troops and specialists from the Ministry of National Defence, the Ministry of Interior and the Romanian Intelligence Service are going to participate on December 1, alongside troops from several allied or partner countries, in the military parade organized in celebration of Romania's National Day, at the Triumph Arch Square, the Ministry of National Defence (MApN) announced