Question: what are the career districts in the hunger games

title: Fictional world of The Hunger Games
text: Before the Dark Days war , District 13 specialized in nuclear technology , mining graphite , and the development of emerging technologies for use by Panem 's military . It was also the Capitol 's primary military -- industrial complex and weapons manufacturer until the rebellion . During the Dark Days , they were one of the major forces of the rebellion . Near the end of the Dark Days they managed to take control of the nuclear arsenal . District 13 was supposedly bombed and destroyed before the first annual Hunger Games at the end of the Dark Days war , but it was hinted in Catching Fire that they had survived , and in Mockingjay it is confirmed that District 13 had become , literally , an underground district when the population retreated to bunkers . After the Capitol and District 13 agreed to cease hostilities towards one another under the doctrine of mutually assured destruction , the Capitol spread the story that District 13 had been destroyed ; District 13 had control of the primary nuclear weapons stockpile and the Capitol did not want a nuclear war . This underground district maintains concealed livestock and vegetable farms in order to survive after the Capitol destroyed everything above ground , so as not to arouse the suspicion of the other districts . This was a risk that , according to Katniss , the Capitol had underestimated . District 13 is a week away from District 12 on foot .