Derby of the Eternal Enemies

The Derby of the Eternal Enemies (Greek: Ντέρμπι των αιωνίων αντιπάλων), also known among fans as the Mother of All Battles (Greek: μητέρα όλων των μαχών), is an association football derby contested between two of the most successful clubs of Greece, Olympiacos from Piraeus and Panathinaikos from the capital Athens.

Panathinaikos, founded in 1908, comes from Athens and was considered the classic representative of the high class and old Athenian society of the Greek capital.

On the other hand, Olympiacos was founded in 1925 and comes from the port city of Piraeus, thus attracting supporters from the surrounding working class areas.

Olympiacos' early success provided a way for the people of Piraeus to express their contempt for the wealthier classes, by which Panathinaikos was heavily supported.

[citation needed] However, this kind of clash was much more pronounced in the past, as the class differences between the fanbases have faded out and the social gap that once separated the two sides has closed over the years.

Olympiacos and Panathinaikos are the most popular Greek clubs, with both sides having large fanbases that follow them in domestic and international matches.

Football hooliganism is a very common phenomenon between their fans in recent years, featuring anything from breaking seats and fighting to fireworks and street rioting.

Their football departments have always been the most attractive among their fans and they have a long-standing antagonism since they first met in the fields, but the rivalry also extends into other team sports such as basketball, volleyball and water polo.