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(945 posts)
Mon Apr 1, 2024, 08:55 AM Apr 1

On This Day: U.S. bombs Switzerland by mistake, 40 killed - Apr. 1, 1944

(edited from Wikipedia)
Aerial incidents in Switzerland in World War II

During World War II the neutral country of Switzerland underwent initially sporadic bombing and aerial combat events that became more frequent during the later stages of the war.

Switzerland was adjacent to and at times almost completely surrounded by Axis, or Axis-occupied, countries. On several occasions, Allied bombing raids hit targets in Switzerland resulting in fatalities and property damage. The Swiss government initially intercepted German aircraft in 1940 during the Battle of France but caved to German pressure and stopped intercepting their aircraft. Such events led to diplomatic exchanges.

While Allied forces explained the causes of violations as navigation errors, equipment failure, weather conditions, and pilots' errors, fear was expressed in Switzerland that some neutrality violations were intended to exert pressure on the country to end its economic cooperation with Nazi Germany. In addition to bombing raids, air attacks by individual fighter planes strafed Swiss targets toward the end of the war. The Swiss military, in turn, attacked Allied aircraft overflying Switzerland with fighters and anti-aircraft cannon.


The daylight bombing of Schaffhausen on 1 April 1944 by the United States Army Air Forces (USAAF) was the most serious of all incidents. Approximately 50 B-24 Liberators of a larger force misidentified Schaffhausen as their target Ludwigshafen am Rhein near Mannheim (about 146 mi) north of Schaffhausen), and dropped sixty tons of bombs on the town. Although an air raid alarm sounded in Schaffhausen, air raid sirens had been set off so many times without any attack that complacency had set in and the locals felt safe, and many failed to take cover.

A total of 40 people were killed and about 270 injured, and large parts of the town were destroyed. At the insistence of the Swiss government for an explanation, Allied investigations into the incident found that bad weather broke up the American formation over France, and that high winds that nearly doubled the ground speed of the bombers confused the navigators (two other widely scattered cities in Germany and France were also mistakenly bombed during the same mission). As Schaffhausen is situated on the right bank (north side) of the Rhine river, it was apparently assumed to be Ludwigshafen am Rhein. By October 1944, US$4,000,000 had been paid in restitution.


During World War II, Swiss airspace was violated by both sides. During the Battle of France, the Swiss Air Force shot down eleven German planes violating Swiss airspace for the loss of three planes in return. The most significant of these incidents occurred after the Swiss shot down a Messerschmitt Bf 110 on 4 June 1940. In response to this, Hermann Göring ordered an incursion by 32 Bf 110s. These were intercepted by 14 Swiss Messerschmitt 109s, leading to the loss of four 110s. This resulted in a German threat of sanctions and retaliation, and on 20 June the Swiss government decided to order an end to interceptions of foreign aircraft in Swiss airspace.

With Allied and Axis aircraft freely overflying Switzerland, over 7,000 siren alarms were initiated in Switzerland during the war. Some Allied bombers took advantage of this situation by using Swiss airspace as a safer route than enemy air space on their bombing runs to and from targets in Germany, but more often, bombers in distress preferred to descend to neutral Switzerland for asylum rather than in German territory. As a result, Switzerland ultimately interned 1,700 American airmen.

From 1941 to 1942, Allied bombers very rarely flew over Switzerland, because the Swiss authorities, under German pressure, prescribed black-outs in order to complicate navigation for U.S. and British air crews. As neutral Swiss territory was safe for Allied bombers, Germany also pressured the Swiss into forcing the Allied air crews to land in Switzerland, instead of letting them continue bombing runs.

Axis violations of Swiss airspace

Nazi Germany repeatedly violated Swiss airspace. During the Battle of France, German aircraft violated Swiss airspace at least 197 times. In several air incidents, the Swiss shot down 11 Luftwaffe aircraft between 10 May 1940 and 17 June 1940, while suffering the loss of three of their own aircraft.

[Hitler furious]

Hitler was especially furious when he saw that German equipment was used to shoot down German pilots. He said they would respond "in another manner". Later, Hitler and Hermann Göring sent saboteurs to destroy Swiss airfields but they were captured by Swiss troops before they could cause any damage.

Allied violations of Swiss airspace

In 1943, the Swiss military began attacking Allied aircraft breaching Swiss airspace. Six Allied aircraft were shot down by Swiss Air Force fighters and four by anti-aircraft cannon, killing 36 Allied airmen.

Zürich and Basel

On 4 March 1945, six USAAF B-24H bombers hit Zürich with 12.5 tons of high explosives and 12 tons of incendiaries, killing five people. The intended target had been Aschaffenburg near Frankfurt am Main, 180 mi north. The six bombers had gone off course, and their crews believed they were bombing Freiburg im Breisgau. At virtually the same time, other bombers dropped 12.5 tons of high explosives and five tons of incendiaries on Basel.

Court-martial proceedings

Regarding the Zurich bombing, a court-martial proceeding took place in England on 1 June 1945. Col. James M. Stewart, the famous actor and wartime B-24 pilot, was the presiding officer of the trial. Accused were the lead pilot Lieutenant William R. Sincock and one of his navigators, Lieutenant Theodore Q. Balides, for violating the 96th Article of War, and Sincock specifically for having "wrongfully and negligently caused bombs to be dropped in friendly territory".

Weather conditions and equipment failure were found to be at fault; the defendants were found not guilty of criminal culpability. Prosecutors for the International Military Tribunal for the Far East once discussed this case as further precedent to prosecute Japanese pilots involved in the surprise attack on Pearl Harbor. However, they quickly dropped the idea after realizing there was no international law that protected neutral areas and nationals specifically from attack by aircraft.


In addition to the US$4 million paid by October 1944, the United States government agreed to pay 62,176,433.06 Swiss francs (then equivalent to $14.4 million, or $249 million at current prices) to the Swiss government as full and final payment for damage to persons and property during World War II on 21 October 1949.

The actor Jimmy Stewart

Stewart was promoted to major following a mission to Ludwigshafen, Germany, on January 7, 1944. He was awarded the Distinguished Flying Cross for actions as deputy commander of the 2nd Bombardment Wing, the French Croix de Guerre with palm, and the Air Medal with three oak leaf clusters. Stewart was promoted to full colonel on March 29, 1945, becoming one of the few Americans to ever rise from private to colonel in only four years. At the beginning of June 1945, Stewart was the presiding officer of the court martial of a pilot and navigator who accidentally bombed Zürich, Switzerland.

On July 23, 1959, Stewart was promoted to brigadier general, becoming the highest-ranking actor in American military history.


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On This Day: U.S. bombs Switzerland by mistake, 40 killed - Apr. 1, 1944 (Original Post) jgo Apr 1 OP
American flyers were as often very respectful of Swiss airspace, even if unintentionally. Aristus Apr 1 #1


(66,573 posts)
1. American flyers were as often very respectful of Swiss airspace, even if unintentionally.
Mon Apr 1, 2024, 02:40 PM
Apr 1

An American fighter plane strayed over into Swiss airspace during an air mission during the war, and the Swiss Air Force, planes prominently marked with the white-on-red-cross national flag, scrambled to intercept him. He was ordered to land and be interned, full expecting either fight or flight in return. The American obeyed so quickly, and without resistance that, once on the ground, he was asked why he didn't fire at his interceptors.

Indignantly, he replied: "I would never fire on a Red Cross plane!"

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