The world is blowing up. Every day a new blaze seems to ignite: the bloody implosion of Iraq and Syria; the East-West standoff in Ukraine; abducted schoolgirls in Nigeria. Is there some thread tying these frightening international security crises together? In a riveting account that weaves history with fast-moving reportage and insider accounts from the Afghanistan war, Sarah Chayes identifies the unexpected link: corruption.

Since the late 1990s, corruption has reached such an extent that some governments resemble glorified criminal gangs, bent solely on their own enrichment. These...