South Africa's Zulu king has raised eyebrows by using a highly derogatory term for foreigners and saying they must all leave the country during a much-hyped speech that was supposed to have been aimed at calming anti-migrant feelings in his home province of KwaZulu-Natal. Warning: This story contains language some people may find offensive Misuzulu kaZwelithini was addressing his supporters at the place where 20,000 Zulus warriors defeated a British contingent of 1,800 soldiers 147 years ago