Air raid sirens to go off at 11 a.m.
Air raid sirens will go off across Greece on Tuesday as part of an annual large-scale military and civil defense exercise.
The will sound every 60 seconds, starting at 11 a.m. and ending at 11.05 a.m.
The military exercise, named after Parmenion – a general in the army of ancient Macedonian warrior king Alexander the Great and of his father Philip II – will be held throughout the country through Friday.
