The full-scale war between the districts of Panem and the Capitol comes to an end at the end of the trilogy, with the districts invading the Capitol and taking power from President Snow. Initially, President Coin of District 13 is set to lead the new society, but Katniss recognizes her self-serving interests and assassinates her unexpectedly. Commander Paylor of District 8 is voted in as president.
Katniss, the main character of the trilogy, is at the center of the war. Her sister Prim is killed in the final battle. After Katniss recovers, she assassinates President Coin. Though she is not imprisoned, she is confined to her home in District 12. She gradually heals from her psychological wounds. In the epilogue, it is revealed that she has married Peeta Mellark, who has been in love with her throughout the trilogy, and they have two children.
Gale, Katniss' best friend and hunting partner, also takes a large part in the war. It is never determined whether it was a bomb of his design that killed Katniss' sister Prim. Though Gale was one of Katniss' love interests, along with Peeta, he disappears at the end of the trilogy. Katniss learns that he got a "fancy job" in District 2.
Haymitch, Katniss and Peeta's alcoholic mentor, returns to District 12 with Katniss. He remains an alcoholic. Between shipments of alcohol, he raises geese. When Katniss and Peeta put together a book to honor those who died in the war, Haymitch contributes his memories of the youths he mentored during 23 years of Hunger Games.
It is President Snow who convinces Katniss that President Coin doesn't have Panem's best interests at heart. As the leader of the former regime, he is slated for assassination. Katniss is chosen to assassinate him; she shoots President Coin at the last minute. President Snow is killed in the resulting pandemonium. It is unclear whether the mob killed him or he choked on blood from earlier injuries.