The German City That Tricked The Allies Into Thinking It Was Part Of Switzerland

Photo Credit: 1. Patrick Nouhailler / Wikimedia Commons CC BY-SA 3.0 2. Picture Alliance / Getty Images

Air raids were a common occurrence during World War II. Cities across Europe were subjected to nighttime bombings aimed at throwing their military forces off guard. Incredibly, a German city was able to remain relatively unscathed from Allied attacks, thanks to some illuminating trickery.

A historic city

Konstanz is located in southern Germany, in the state of Baden-Württemberg. It sits at the edge of the Swiss Alps, along Lake Constance. Its closest neighbor is the Swiss municipality of Kreuzlingen — in fact, the border between Switzerland and Germany runs right through the city’s center.

Konstanz dates back to the late Stone Age. Its name is believed to have been coined during the Roman Empire, and it was home to a Roman Catholic principality for over 1,200 years. It was also the location of the Council of Constance in the early 1400s, which called for the end to the Great Schism.

Medieval building in Konstanz
Photo Credit: MartinThoma / Wikimedia Commons CC0 1.0

It officially became part of the German Empire in 1871 during the country’s unification. Upon the conclusion of World War I, it existed within the Republic of Baden, which was part of the Weimar Republic.

WWII air raids

Also known as strategic bombings, air raids were experienced by many cities within Europe during WWII. They targeted key locations, including highly populated cities, transportation hubs, and production factories, and aimed to cripple the opposing forces.

These air attacks typically occurred at night and were paired with ground forces to ensure the most damage was inflicted. The overall goal was to disrupt the enemy as much as possible. They were fairly effective, and as the war progressed, such bombings occurred with more frequency.

An airplane flying above a recently-bombed area
Allied bombing in Italy. (Photo Credit: Office of War Information / Wikimedia Commons)

The Nazis’ primary focus was England, where they targeted London and port cities. The Allies caused much more damage in Germany, and their air raids decimated such cities as Hamburg and Dresden. This was due to the fact their planes were able to carry more bombs than their Luftwaffe counterparts.

Konstanz refuses to go dark

One of the ways in which cities protected themselves from air raids was to enact nightly blackouts. Residents were forbidden from lighting candles in their homes and were instructed to cover windows with curtains or black paint. Streetlights were extinguished, and vehicles weren’t permitted to use their headlights.

The idea was to make it more difficult for the attacking forces to find and hit their targets. This increased the probability that vital services and facilities would be spared from the bombings, and it ensured the safety of civilians.

The former town hall in Konstanz
Photo Credit: JoachimKohler-HB / Wikimedia Commons CC BY-SA 4.0

While the majority of German cities enforced blackouts, Konstanz didn’t. Instead, it decided to keep its lights on. It got the idea from its neighbors in Kreuzlingen, who were able to stay lit because of the country’s neutrality. The idea was simple: by keeping their lights on, the Allies would think they were part of Switzerland.

The plan worked. American pilots flying overhead assumed they were looking down upon a Swiss city and thus didn’t drop their bombs. Konstanz, therefore, remained one of the few German cities to retain much of its original architecture, allowing it to develop a thriving tourism economy in the post-war years.

WWII activity

Looking back, the Allies probably wished they hadn’t been fooled by the tactic, as Konstanz played an active role in the German war effort. The city produced parts for the Nazis’ arsenal, all of which were used against the Allies.

Konstanz manufactured radar parts for German submarines, as well as gun parts. Schwarzwald Flugzeugbau GmbH developed its flying torpedoes at a facility in the city, while aircraft manufacturer Dornier transferred a portion of its production there after the bombing of Friedrichshafen.

A view of Konstanz from the water
Photo Credit: Varus111 / Wikimedia Commons CC BY-SA 4.0

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As well, Konstanz actively participated in the deportation of Jews from Germany. In October 1940, the last of its Jewish residents were sent to the Gurs internment camp in southwestern France. Those still alive in August 1943 are believed to have died at either Auschwitz or Sobibór.