Botswana–South Africa relations
Botswana–South Africa relations refers to the historical and current relationship of Botswana and South Africa. Botswana has a high commission in Pretoria and South Africa has a high commission in Gaborone. Both countries are former British colonies and members of the African Union and Commonwealth of Nations.
In 1986, President Quett Masire of Botswana said that South Africa's black neighbors would suffer most if Western countries imposed economic sanctions on South Africa. He said "Obviously we can't prohibit the West from imposing sanctions on South Africa and we welcome every form of pressure on the apartheid regime." 
Relations between South Africa and Botswana were formalised with the establishment of Representative Offices in both countries in 1992. The upgrading of relations to full diplomatic level came into force on 22 June 1994.
In 2003, South African President, Thabo Mbeki visited Botswana President Festus Mogae. The two countries issued a communique which said the two heads of state reviewed bilateral, regional and international issues of mutual interest such as the Agreement on the Establishment of a Joint Permanent Commission for Cooperation between Botswana and South Africa. The two leaders also expressed the need "to assist the people of Zimbabwe in addressing the problems confronting their country".
In 2003, the two countries signed a double taxation agreement.
In 2005, the two countries signed six agreements to enhance co-operation in various fields including agriculture, health, local government, sports, culture and transport.
In 2006, the environment ministers of the two countries together with Zimbabwe signed an for a new transfrontier game park called the Limpopo-Shashe Transfrontier Conservation Area straddling the borders of Botswana, South Africa and Zimbabwe.
In 2007, Botswana Railways signed an agreement with South African rail operator Spoornet. The agreement will result in a joint business and harmonisation of expectations in terms and allocation of resources. This followed negotiations between the two operators in 2006.
- President of Botswana, South Africa agree to resolve Zimbabwe crisis Mmegi website. Gaborone - November 26, 2008