The Red Devils, or official fan club of the South Korean national football team, cheer the Korean players during the 2002 Korea-Japan World Cup match against the United States at Daegu World Cup Stadium on June 10, 2002. The Red Devils brought together offline and online worlds. They refined the concept of nationalism and upgraded national image. The world remembers the images of patriotic and organized gatherings of millions of the Red Devils, which replaced the past memories of militant and angry protesters.