The 31-page unclassified document exists on STRATCOM letterhead, drafted by junior planners at Offutt Air Force Base as a training exercise. Its own disclaimer states it was not designed as a joke: zombies were chosen as a fictional enemy so no real nation would be offended while practicing the planning format. A 2014 FOIA release made it public and the Pentagon confirmed its purpose.
Popular retellings drop the training purpose and file the plan as proof the government knows something, especially after it resurfaced during pandemic-era lockdowns. The disclaimer paragraph is consistently cropped out of screenshots.
The durable logic: a planner cannot wargame a real country without diplomatic cost, but a zombie horde behaves exactly like an uncontrolled pandemic or mass-casualty collapse. The document is a stress test of the planning system itself, and its leak is a free lesson in how context dies on the internet.
Why does the world's most serious bureaucracy train on the least serious enemy?