Malaysia, which supplies about half of Singapore's water, threatened to cut off that supply in 1997 after Singapore criticized its government policies. In Africa, relations between Botswana and Namibia have been severely strained by Namibian plans to construct a pipeline to divert water from the shared Okavango River to eastern Namibia. There are potential water wars in the Middle East, where water resources are severely limited. The late King Hussein of Jordan once said the only thing he would go to war with Israel over was water because Israel controls Jordan's water supply.