United states of Southern Africa

1824 Zombie Sighting
British explorers observing a Zulu tribe saw a zombie being used as an initiation test for a warrior.

World War Z
The first large outbreak of zombies occurred here in a shantytown, leading to a fire and gunfight with police. As the country became consumed by the Great panic the intelligence agency tracked down Paul Redeker. An intelligence planner who created the Redeker Plan, allowing the government to retake infested areas.

Current Status
The current status of the USSA is unknown, all that is shown is that they are apparently stable and wealthy enough to construct mental asylums.