Revolutionary-era Americans had the “Join or Die” snake. Second World war had William of Orange, a pigeon, (honoured for his role in Operation Market Garden in 1945). Narnia had Aslan.
In a Greece struggling another symbol of revolution is rising. They call him either “Riot-Dog” or “Rebel-Dog”, depending on the source.
From pictures it could also be interpreted that Riot dog is trying to mediate between rioters and police: which shows a true utopian instinct.