section_path: Causes/Strategic rivalry
section_name: Strategic rivalry
paragraph_text: Strategic rivalry
  
  While tropical Africa was not a large zone of investment, other overseas regions were. The vast interior between Egypt and the gold and diamond-rich Southern Africa had strategic value in securing the flow of overseas trade. Britain was under political pressure to build up lucrative markets in India, Malaya, Australia and New Zealand. Thus, it wanted to secure the key waterway between East and West – the Suez Canal, completed in 1869. However, a theory that Britain sought to annex East Africa during 1880 onwards, out of geo-strategic concerns connected to Egypt (especially the Suez Canal), has been challenged by historians such as John Darwin (1997) and Jonas F. Gjersø (2015).
  
  The scramble for African territory also reflected concern for the acquisition of military and naval bases, for strategic purposes and the exercise of power. The growing navies, and new ships driven by steam power, required coaling stations and ports for maintenance. Defence bases were also needed for the protection of sea routes and communication lines, particularly of expensive and vital international waterways such as the Suez Canal.
  
  Colonies were seen as assets in balance of power negotiations, useful as items of exchange at times of international bargaining. Colonies with large native populations were also a source of military power; Britain and France used large numbers of British Indian and North African soldiers, respectively, in many of their colonial wars (and would do so again in the coming World Wars). In the age of nationalism there was pressure for a nation to acquire an empire as a status symbol; the idea of "greatness" became linked with the " White Man's Burden ", or sense of duty, underlying many nations' strategies.
  
  In the early 1880s, Pierre Savorgnan de Brazza was exploring the region along the Congo River for France, at the same time Henry Morton Stanley explored it on behalf of the Committee for Studies of the Upper Congo, backed by Leopold II of Belgium, who would have it as his personal Congo Free State. Leopold had earlier hoped to recruit Pierre Savorgnan de Brazza, but turned to Henry Morton Stanley when the latter was recruited by the French government. France occupied Tunisia in May 1881, which may have convinced Italy to join the German-Austrian Dual Alliance in 1882, thus forming the Triple Alliance. The same year, Britain occupied Egypt (hitherto an autonomous state owing nominal fealty to the Ottoman Empire), which ruled over Sudan and parts of Chad, Eritrea, and Somalia. In 1884, Germany declared Togoland, the Cameroons and South West Africa to be under its protection; and France occupied Guinea. French West Africa was founded in 1895 and French Equatorial Africa in 1910. In French Somaliland, a short-lived Russian colony in the Egyptian fort of Sagallo was briefly proclaimed by Terek Cossacks in 1889.