We won't loose 10 000's of men. This is 21th century. We have armored vehicles, tanks, long-range missiles, superiour jets. What do Greeks have? Greek army nowadays has shrinked because of austerity. You can't match us in any aspect.
And who says we need to invade Greece? With our navy, long-range missiles and air superiority we can reach every square inch in Greece.
What I'm trying to say, sooner or later Greece will need to back down. Greece has fooled himself they can compete with the big guys and we can see the result today. Greek people are starving in the streets.
I suggest Greece to stop its expansionist policy. Give up west-Thrace, half of Agean sea/islands and start being friendly to Turkey and its neighbors so Greece can self-sustain and feed its people.