Sometimes, there isn't anyone to call. In a liberal world filled with low intensity conflict, high profile missions performed by high profile units get too much media coverage. Anyone with a cell phone becomes a man on the street reporter. The need for low profile reaction to terrorists, tribal warlords, pirates, drug cartels, and others, has never been greater.
That's where Zulu Group comes in. In a secret treaty, five nations agree that a small, well equipped, highly motivated unit could help where a larger group from a single nation might create more problems. When there is nothing else to do, call the last people you can.......Zulu Group.