"I concentrate on the southern African subcontinent"

In this quote, Nigel Dennis is revealing his focus and attention on the southern African subcontinent. This area includes nations such as South Africa, Namibia, Botswana, Zimbabwe, and Mozambique. By specifying that he concentrates on this area, Dennis is suggesting that he devotes his time and energy to understanding and exploring the cultures, histories, and present events of these countries. This could suggest that he has a specific interest or expertise in this area, and maybe even an individual connection to it. In general, this quote highlights the importance of understanding and valuing the unique and diverse regions of the world.