Allied Bombers Landing in Neutral Countries During WWII
The overwhelming majority of these incidents involved damaged or fuel-starved American and British bombers attempting to avoid capture in Axis territory. Under international law (Hague Convention V), neutral countries were required to intern both aircraft and crews for the duration of the war.
The principal neutral countries involved were:
Switzerland became the primary refuge for crippled Allied bombers returning from raids over Germany, Austria, France, and Italy. Thousands of Allied aircraft violated Swiss airspace during the war.
The Swiss interned approximately 1,700 American airmen, numerous RAF personnel, and many damaged aircraft. Swiss authorities sometimes treated internees well, but conditions varied widely; some American airmen were even imprisoned in harsh camps such as Wauwilermoos.
October 1, 1943
First American bomber officially shot down by Swiss defenses near Bad Ragaz after violating Swiss airspace.
1943-1945
Large numbers of B-17 Flying Fortresses and B-24 Liberators landed at:
March-September 1944
Major influx of American bombers after deep raids into Germany. Many heavily damaged Eighth Air Force bombers diverted into Switzerland rather than risk crashing in Germany.
April 1, 1944 - Schaffhausen Bombing
USAAF bombers accidentally bombed the Swiss town of Schaffhausen, mistaking it for a German target. Forty civilians were killed.
Total Swiss Airspace Violations
6,304 Allied aircraft violated Swiss airspace during the war.
Sweden accepted numerous Allied bombers that became damaged during raids over Germany or Scandinavia. Sweden generally interned crews but was often more lenient than Switzerland. Many crews eventually escaped or were quietly repatriated to Britain.
July 24, 1943 - "Georgia Rebel"
USAAF B-17F belly-landed near Arjang, Sweden. First of approximately 68 B-17 bombers to seek refuge in Sweden during the war.
March 6, 1944 - "Liberty Lady"
B-17G Flying Fortress crash-landed on Gotland, Sweden after severe flak damage. The entire crew survived and was interned.
1944
Increasing numbers of USAAF bombers diverted to Sweden after raids against:
Spain under Franco was officially neutral (later "non-belligerent"), though politically sympathetic to the Axis for much of the war.
Damaged Allied aircraft occasionally landed in Spain, especially RAF aircraft from Mediterranean operations and USAAF bombers returning from southern Europe. Crews were generally interned briefly and often quietly released to British authorities.
1943-1944
Multiple B-24 Liberators and RAF bombers landed in:
After Operation Tidal Wave (August 1, 1943)
Some damaged bombers from the Ploiesti oil raids diverted toward Spain or Portugal due to catastrophic fuel shortages.
Portugal maintained neutrality under Salazar but was quietly pro-Allied in strategic matters. Damaged Allied aircraft occasionally landed in Portugal or the Azores.
Unlike Switzerland, Portugal often facilitated rapid repatriation of Allied crews.
1943-1945
RAF Coastal Command aircraft and USAAF bombers occasionally diverted to Portuguese territory after Atlantic patrols or European bombing missions.
Azores Bases (1944)
Portugal allowed Allied use of Azores bases late in the war, effectively ending strict neutrality.
Turkey remained neutral for most of WWII and interned aircraft from both Axis and Allied nations.
This became more common during Balkan operations, Mediterranean operations, and shuttle bombing missions between Italy and the Soviet Union.
1944
Several USAAF aircraft participating in "Operation Frantic" shuttle bombing missions ended up in Turkish territory after navigational or combat problems.
Damaged bomber crews often intentionally headed for neutral territory because:
Swiss airspace in particular became an unofficial "last chance" refuge for crippled bombers returning from Germany.
Most Commonly:
Less Commonly:
| Neutral Country | Approximate Allied Aircraft Interned |
|---|---|
| Switzerland | Hundreds |
| Sweden | ~140 Allied aircraft total |
| Spain | Dozens |
| Portugal | Smaller numbers |
| Turkey | Limited numbers |
These incidents reveal:
Switzerland and Sweden especially walked a delicate line between:
Many Allied airmen remembered internment as vastly preferable to becoming Luftwaffe prisoners.