Switzerland temporarily closed its embassy in Tehran on Tuesday and evacuated its ambassador and five Swiss staff members by land as security risks rose during the widening war in the Middle East. Swiss officials said the group is now safely outside Iran.
The United States has not maintained an embassy in Iran since the 1979 hostage crisis severed diplomatic relations between Washington and Tehran. Switzerland has represented U.S. interests in Iran since 1980 and serves as the primary diplomatic channel between the two governments.
Swiss officials said Bern suspended embassy operations but confirmed the protecting-power mandate for the United States will continue and that the open line between Washington and Tehran remains in place in consultation with both countries.
Naysan Rafati, senior Iran analyst at the International Crisis Group, told Military.com Wednesday that Switzerland has long served as a critical emergency contact channel between Washington and Tehran even during periods of intense tension.
“The Swiss have long been the ‘break glass in case of emergency’ line of contact between the U.S. and Iran,” Rafati told Military.com on Wednesday. “The embassy staff’s physical departure from Tehran doesn't mean that the channel is closed.”
Rafati added that other governments have also acted as intermediaries between the two sides and can convey messages when direct communication becomes difficult, noting that previous reporting has indicated the Trump administration and Iranian interlocutors have maintained direct contacts at times, meaning several diplomatic pathways could remain available if either side seeks engagement.
Military.com reached out for comment to the State Department and the Swiss Federal Department of Foreign Affairs.
War Drives Swiss Embassy Out of Tehran
Swiss authorities announced March 11 that the embassy in Tehran had closed temporarily after security conditions deteriorated during the widening regional conflict involving Iran, U.S. forces and regional partners.
Swiss officials said the ambassador and remaining diplomatic personnel departed Iran by land after conditions in the capital became increasingly unstable and several governments began reassessing diplomatic security in Tehran.
A post on X from the U.S. embassy in Bern said it "respected" the decision for the temporary closure, adding that it is "deeply grateful" for all staff keeping Americans safe.
Officials indicated that protecting embassy personnel became the priority as the regional conflict intensified. Several foreign missions began reducing staff or reviewing contingency plans as fighting escalated and security risks increased.
The Swiss embassy plays an unusually sensitive diplomatic role in Tehran. Switzerland represents U.S. interests in Iran because Washington and Tehran do not maintain diplomatic relations, due to a rupture dating back to the 1979 hostage crisis when Iranian militants seized the U.S. Embassy in Tehran and held American diplomats captive for 444 days.
Swiss officials said the protecting power mandate will continue despite the temporary closure of the embassy.
The move underscored how the conflict has begun reshaping diplomatic operations as governments reassess the safety of personnel in and around Iran. Related fighting has already widened far beyond initial strikes, with U.S. casualties mounting and commercial shipping in the Strait of Hormuz under growing pressure.
Maintaining a Critical US-Iran Backchannel
Swiss officials emphasized that Switzerland’s role representing U.S. interests in Iran will continue even without diplomats stationed inside the country.
Switzerland hosts the U.S. Foreign Interests Section in Tehran and serves as the primary diplomatic intermediary between Washington and Tehran because the two governments do not maintain formal diplomatic relations.
The United States broke diplomatic ties with Iran following the 1979 seizure of the U.S. Embassy in Tehran and the 444-day hostage crisis. Switzerland assumed the protecting power mandate the following year and has managed U.S. diplomatic interests in Iran since 1980.
Under that arrangement, Swiss diplomats transmit official messages between the two governments, assist American citizens in Iran, and oversee consular matters connected to U.S. interests.
Swiss officials indicated the diplomatic channel between the United States and Iran remains active through Swiss mediation even while embassy operations in Tehran are suspended.
The protecting power system allows a neutral country to represent the diplomatic interests of another nation when formal diplomatic relations do not exist and is often used during conflicts when direct communication between governments becomes politically impossible.
Foreign Embassies Reassess Security
The embassy closure came as tensions surged across the Middle East after fighting erupted Feb. 28 between Iran and a coalition that includes the United States and Israel, dramatically escalating regional security concerns.
Hostilities quickly spread across the region and prompted multiple governments to reassess diplomatic security in Tehran as the conflict widened and the risk to foreign personnel increased.
Swiss officials began scaling back embassy staffing in early March as conditions deteriorated and diplomatic missions across the region reviewed contingency plans for evacuations or temporary closures.
Several Swiss diplomats departed Iran in the days before the full evacuation as officials monitored the rapidly changing security situation.
Even after the conflict began, Swiss officials confirmed diplomatic communications between Washington and Tehran continued through the protecting power channel managed by Switzerland.
Security alerts issued by the United States also warned Americans about worsening conditions in Iran and emphasized the limits of U.S. consular assistance because Washington does not maintain diplomatic facilities in the country.
U.S. officials routinely direct Americans in Iran to seek assistance through the Swiss embassy, which represents U.S. interests in Tehran.
The broader war has continued to spread across the region, with military, diplomatic and economic consequences mounting. Coverage of attacks on shipping in one of the world’s most important energy chokepoints and new strikes targeting Gulf states and Israel shows how quickly the conflict has expanded beyond the initial battlefield.
Embassy Keeps Washington Talking
Switzerland’s intermediary role often provides one of the only official channels for communication between Washington and Tehran. Switzerland assumed the protecting power mandate in 1980 and has served as Washington’s diplomatic representative in Iran ever since.
Under the arrangement, Swiss diplomats transmit official messages between the two governments, assist American citizens in Iran, and oversee consular matters tied to U.S. interests.
The protecting power system allows a neutral country to represent the diplomatic interests of another nation when formal diplomatic relations do not exist. Governments often rely on the arrangement during conflicts or periods of severe political tension.
