A protectorate, in the context of international relations, is a state that is under protection by another state for defence against aggression and other violations of law. It is a dependent territory that enjoys autonomy over most of its internal affairs, while still recognizing the suzerainty of a more powerful sovereign state without being a possession. In exchange, the protectorate usually accepts specified obligations depending on the terms of their arrangement. Usually protectorates are established de jure by a treaty. Under certain conditions—as with Egypt under British rule (1882–1914)—a state can also be labelled as a de facto protectorate or a veiled protectorate.
A protectorate is different from a colony as it has local rulers, is not directly possessed, and rarely experiences colonization by the suzerain state. A state that is under the protection of another state while retaining its "international personality" is called a "protected state", not a protectorate.
History
Protectorates are one of the oldest features of international relations, dating back to the Roman Empire. Civitates foederatae were cities that were subordinate to Rome for their foreign relations. In the Middle Ages, Andorra was a protectorate of France and Spain. Modern protectorate concepts were devised in the nineteenth century.
Typology
Foreign relations
In practice, a protectorate often has direct foreign relations only with the protector state, and transfers the management of all its more important international affairs to the latter. Similarly, the protectorate rarely takes military action on its own but relies on the protector for its defence. This is distinct from annexation, in that the protector has no formal power to control the internal affairs of the protectorate.
Protectorates differ from League of Nations mandates and their successors, United Nations Trust Territories, whose administration is supervised, in varying degrees, by the international community. A protectorate formally enters into the protection through a bilateral agreement with the protector, while international mandates are stewarded by the world community-representing body, with or without a administering power.
Protected state
A protected state has a form of protection where it continues to retain an "international personality" and enjoys an agreed amount of independence in conducting its foreign policy.
For political and pragmatic reasons, the protection relationship is not usually advertised, but described with euphemisms such as "an independent state with special treaty relations" with the protecting state. A protected state appears on world maps just as any other independent state.
International administration of a state can also be regarded as an internationalized form of protection, where the protector is an international organisation rather than a state.
Colonial protection
Multiple regions—such as the Colony and Protectorate of Nigeria, the Colony and Protectorate of Lagos, and similar—were subjects of colonial protection. Conditions of protection are generally much less generous for areas of colonial protection. The protectorate was often reduced to a condition similar to a colony, but with the pre-existing native state continuing as the agent of indirect rule. Occasionally, a protectorate was established by another form of indirect rule: a chartered company, which becomes a state in its European home state (but geographically overseas), allowed to be an independent country with its own foreign policy and generally its own armed forces.
In fact, protectorates were often declared despite no agreement being duly entered into by the state supposedly being protected, or only agreed to by a party of dubious authority in those states. Colonial protectors frequently decided to reshuffle several protectorates into a new, artificial unit without consulting the protectorates, without being mindful of the theoretical duty of a protector to help maintain a protectorate's status and integrity. The Berlin agreement of February 26, 1885, allowed European colonial powers to establish protectorates in Black Africa (the last region to be divided among them) by diplomatic notification, even without actual possession on the ground. This aspect of history is referred to as the Scramble for Africa. A similar case is the formal use of such terms as colony and protectorate for an amalgamation—convenient only for the colonizer or protector—of adjacent territories, over which it held () sway by protective or "raw" colonial power.