In most of the lower basin countries, the idea of the territorial integrity of the riparian countries is a concept. The origin of this ancient idea is how domestic water issues should be resolved.
This theory implies that the upper waters of the upper riparian countries should reach the lower riparian countries without interruption. According to The Crown, Egypt has been using this idea repeatedly as an argument, but it has not been approved by Ethiopia.
The third and the last two ideas, which are supposed to bring together the idea of a sovereign state, are the idea of sovereignty and territorial unity. In this case both riparian countries have the right to independently use the water. But when both riparian countries use the water, one has to take the other into account.
There is a concerted intention to use the common interests of the riparian countries that are undergoing exploration. The implication of this is to set up a Joint Commission on which the water is headed, to enable the Commission to carry out such activities. Experts say that this idea requires a great deal of coordination and agreement between countries.
The third of the international legal ideas cited is being used better. Based on this assumption, international law, based on international customary law, and other legal requirements, has been established in international treaties, if they cannot reach consensus.
In particular, international customary law, which is used to settle disputes when there is no agreement between countries, has two principles that are considered to be universally accepted.
One and the first is to use water fairly and rationally. According to this principle, all riparian countries should use water equally and equitably. However, the size of the countries in the basin should be taken into account, what the options are in the country, what the current usage looks like, how much capacity it has in the future, and other existing factors.