political science, politics, government - the study of government of states and other political units

disorder - a disturbance of the peace or of public order

ferment, unrest, agitation, fermentation - a state of agitation or turbulent change or development; "the political ferment produced a new leadership"; "social unrest"

roller coaster - anything characterized by abrupt and extreme changes (especially up and down); "the economy has been on a roller coaster all year"

violence - a turbulent state resulting in injuries and destruction etc.