Consider this - not so long ago, an improvised explosive was found near a place the Evzones were guarding. Everyone else was evacuated, but they remained on guard until it went off.
Because remaining at their post, ready to die in the explosion required less courage than wearing that gear in public. When they guard a place - it's guarded.
Onto the India/Pakistan border.
I don't think they like each other very much
Finally, some drill straight from 18th century Prussia, preserved by Peter the Great, and still practiced in Russia today.