Rwanda, in east-central Africa, is surrounded by the Democratic Republic of the Congo, Uganda, Tanzania, and Burundi. It is slightly smaller than Maryland. Steep mountains and deep valleys cover most of the country. Lake Kivu in the northwest, at an altitude of 4,829 ft (1,472 m), is the highest lake in Africa. Extending north of it are the Virunga Mountains, which include the volcano Karisimbi (14,187 ft; 4,324 m), Rwanda"s highest point.
The original inhabitants of Rwanda were the Twa, a Pygmy people who now make up only 1% of the population. While the Hutu and Tutsi are often considered to be two separate ethnic groups, scholars point out that they speak the same language, have a history of intermarriage, and share many cultural characteristics. Traditionally, the differences between the two groups were occupational rather than ethnic. Agricultural people were considered Hutu, while the cattle-owning elite were identified as Tutsi. Supposedly Tutsi were tall and thin, while Hutu were short and square, but it is often impossible to tell one from the other. The 1933 requirement by the Belgians that everyone carry an identity card indicating tribal ethnicity as Tutsi or Hutu enhanced the distinction. Since independence, repeated violence in both Rwanda and Burundi has increased ethnic differentiation between the groups.
Rwanda, which became a part of German East Africa in 1890, was first visited by European explorers in 1854. During World War I, it was occupied in 1916 by Belgian troops. After the war, it became a Belgian League of Nations mandate, along with Burundi, under the name of Ruanda-Urundi. The mandate was made a UN trust territory in 1946. Until the Belgian Congo achieved independence in 1960, Rwanda-Urundi was administered as part of that colony. Belgium at first maintained Tutsi dominance but eventually encouraged power sharing between Hutu and Tutsi. Ethnic tensions led to civil war, forcing many Tutsi into exile. When Rwanda became the independent nation of Rwanda on July 1, 1962, it