A 2014 study published in the Annual Review of Political Science journal found that strongmen and juntas are both more likely to engage in human rights violations and civil wars than civilian dictatorships.[2] However, military strongmen are more belligerent than military regimes or civilian dictatorships—i.e., they are more likely to initiate interstate armed conflict.[2] It is theorized that this is because strongmen have greater reason to fear assassination, imprisonment, or exile after being removed from power.[2] The rule of military strongmen is more likely to end through an insurgency, popular uprising, or invasion; by contrast, the rule of military regimes and civilian dictatorships are more likely to end in democratization.[2]