you think you won the hunger games?? But 
 i think i said "MAKE NO MISTAKE" and what did you do, you became the face of the rebellion!!! 
 So, "On the seventy-fifth anniversary, as a reminder to the rebels that even the strongest among them cannot overcome the power of the Capitol, the male and female tributes will be reaped from their existing pool of victors." 
 What does it mean? Existing pool of victors? 
 Then I get it, what it means. At least, for me. District 12 only has three existing victors to choose from. Two male. One female ... 
 I am going back into the arena!!!! 
 AGAIN!!! 
 YES AGAIN!! 
 Catching fire starts Six months after the 74th hunger games, since Katniss won the last hunger games by challenging the capitol, and since "the 75th hunger games" is a quarter quell and the capitol change the rules every quarter quell, president Snow took this opportunity and put them back into the arena to take his revenge, and to teach the other districts and the rebels that "even the strongest among them cannot overcome the power of the Capitol."