Ana Arjona of Colombia·s Universidad de Los Andes and Northwestern University presents an intricate theory of how armed conflicts work at the local level, as presented in her 2016 book Rebelocracy: Social Order in the Colombian Civil War. Arjona finds that much of the time, it’s not all anarchy and chaos: there can be some sort of order in the midst of civil war. And that order usually takes one of two forms, and the civilian population has a lot to do with what form it takes.