Rival gangs used the internet to organise a mass brawl.
Violence was only prevented after more than 30 officers, including dog handlers plus a police helicopter, swooped upon The Esplanade, Rochester.
The rival gangs, who armed themselves with weapons, are from opposite sides of Medway –one from the White Road Estate, Chatham, and the other from Strood.
Two of the youngsters allegedly involved were arrested on suspicion of possessing offensive weapons. They were later released on police bail, pending further inquiries.
Inspector Mat Newton, said: “I understand that many teenagers want to be part of a group, feel popular and accepted.
"However they should consider the impact that having a criminal record would have on their future."
Read full story in Friday's print edition of the Medway Messenger. What do you think? Join the debate - email firstname.lastname@example.org