The Tigris and the Euphrates rivers have always been important to civilization. These two rivers cross through the ancient area of Mesopotamia, which is considered the "cradle of civilization."
However, nowadays, the rivers cross international boundaries. This has become an important problem for the region. The fact that the rivers cross boundaries means that it becomes difficult to establish who has the right to make use of the river. Moreover, this also means that it is difficult to decide who is responsible for damage or pollution to such rivers.
Idn't Spain have more colonies in Africa?
OK. During the era of exploration, the Portuguese were sailing around the coast of Africa and began their colonies in Mozambique, Angola, Guinea-Bissau, Cape Verde and Sao Tome y Principe. By the 1500's, Spain was preoccupied by explanding their empire in the Americas. Africa was then ignored for centuries before the introduction of quamine, which allowed Europeans to travel inland in Africa without dropping like flies from malaria. Hence, in the 1870's the scramble for Africa began! The British and French, the two largest Western powers of the day, took the most land in Africa. Germany too took colonies...Cameroon, Tanzania, Togo and Namibia were German colonies before WWI. Even Belgium took the Congo (they actually began the Scramble for Africa after circumnaviagting the Congo River). After WWI, they would also take Rwanda and Burundi from the Germans.
they help see that not one branch has too much power
Ancient Egypt ,separated by periods of relative instability known as the Old Kingdom of the Early Bronze Age, the Middle Kingdom of the Middle Bronze Age and the New Kingdom of the Late Bronze Age.