"the birmingham zulus have been quiet recently because of the arrest of dozens of their members since 2000, in an operation by west midlands police known as operation red card
"the birmingham zulus (or the zulu army) are the main football firm of birmingham city football club
""the birmingham zulus have been quiet recently because of the arrest of dozens of their members since 2000, in an operation by west midlands police known as operation red card" What is the definition of "birmingham zulus"?