A protecting power is a state formally entrusted by one country (the sending state) with looking after its interests in a second country (the receiving state), typically after diplomatic relations have been broken, war has erupted, or an embassy has been closed. The arrangement requires the consent of all three parties.
The institution is codified in the 1961 Vienna Convention on Diplomatic Relations (Article 45 and Article 46) and the 1963 Vienna Convention on Consular Relations (Article 8). It is also central to international humanitarian law: each of the four 1949 Geneva Conventions assigns supervisory functions to protecting powers in armed conflict, including visits to prisoners of war and protection of civilians in occupied territory.
Typical functions include:
- Maintaining the physical premises of the closed embassy or consulate
- Issuing or renewing travel documents for nationals of the sending state
- Providing consular assistance to detained or distressed citizens
- Transmitting diplomatic communications between the two estranged governments
- In wartime, monitoring compliance with the Geneva Conventions
Protecting powers are almost always small or traditionally neutral states with broad acceptability — Switzerland is the most frequent choice, followed by Sweden. The role is distinct from that of the International Committee of the Red Cross, which may act as a substitute for a protecting power in humanitarian matters when none is designated.
The scope of activity is negotiated case by case in an exchange of notes; the protecting power does not represent the sending state politically and cannot bind it. Its staff usually operate from a separate interests section within their own embassy in the host country. The mechanism allows continued low-level contact, citizen services, and crisis communication without restoring formal recognition or relations.
Example
After the United States severed relations with Iran in 1980, Switzerland became the U.S. protecting power in Tehran, a role it continues to perform.