The Cobra Kai Dojo is a fictional martial arts school featured in the television series "Cobra Kai." It is known for its aggressive teaching style and the motto "Strike First, Strike Hard, No Mercy." The dojo was originally founded by John Kreese, a Vietnam War veteran, and has a reputation for producing skilled fighters. In the series, the dojo is revived by Johnny Lawrence, a former student of Kreese, who aims to teach a new generation of students. The dojo serves as a central location for conflicts and character development, highlighting themes of redemption and rivalry among its members.