ISO3166-2 regions for BW
BW-CE : Central
BW-CH : Chobe
BW-GH : Ghanzi
BW-KG : Kgalagadi
BW-KL : Kgatleng
BW-KW : Kweneng
BW-NG : Ngamiland
BW-NE : North-East
BW-SE : South-East
BW-SO : Southern