THE PREMIER EXHIBITION OF AIR, SEA AND LAND TECHNOLOGIES ON THE AFRICAN CONTINENT The Africa Aerospace and Defence (AAD) is Africa’s only aerospace and defence expo that combines both a trade exhibition and an air show. Held biennially in the City of Tshwane – South Africa’s administrative capital, the AAD Expo is one of South Africa’s largest contributors to the country’s GDP in show years, and is regarded as a national asset.