Loukanikos

He was commonly known for joining protests, barking at police, helping in street battles with the Greek police as well as participating in anarchist rallies and picket lines, at least since December 2008.

[1] The dog had a reputation of being fearless, usually being in front of the protests and having tear gas thrown at him multiple times.

BBC's Newsnight created a video montage of the dog in action during protests in Greece, including barking at police in riot gear and running with other protesters away from tear gas.

[3] In September 2011, on the occasion of a striking policemen's union marching in the centre of Athens,[4] he was "initially confused" between two opposite sides, both of uniformed policemen, but when the riot police contingent attacked their striking colleagues, the dog sided with those who were being attacked.

[5] Loukanikos is the subject of a large number of monuments and murals;[6] there is also a restaurant in Madrid named after him.