As last year’s rapid descent of Syria’s president Bashar al-Assad attests, when a dictator falls, they fall fast. But what are the conditions under which that fall occurs? And how can they be sparked?

Like father, like son: Are the Bolsonaros set to take Brazil or can Lula fight back?
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Explainer 538: Are Ethiopia’s enemies uniting?
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As war threatens to accelerate across Europe, why are some countries still stuck in neutral?
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