Botswanian President Seretse Khama Ian Khama concluded on Thursday a four-day official visit to Cuba after meeting with his counterpart Raul Castro and pledging joint efforts to enhance bilateral cooperation. Ian Khama and Raul Castro discussed bilateral relations, including Cuba's support to Boswana, said an official statement. Officials from both sides also held three workshops on health, higher education and external relations. During his visit, Ian Khama laid a wreath to the Cubans fallen in military missions in Africa. He praised their participation in the African countries' struggle for independence over the past century and their contribution to ending the apartheid regime in South Africa. 'Sometimes in Africa we had received millions of dollars from wealthy nations, but in proportional terms, Cuba has given to us much more than anybody,' he said. The two sides signed cooperation agreements on international relations and health. This was Ian Khama's second visit to Cuba, after he first visited the country in June 2007 as vice president. Cuba and Botswana have kept close ties in the areas of health, education, sports and agriculture since they formed diplomatic ties in December 1977. 