The bombing of the Sihl plain
Adi Kälin
27. November 2025
The damming up of Lake Sihl to create a reservoir started on 30 April 1937. A few days later, the Swiss air force bombed two vacated farmhouses in the area designated for the lake as part of a training exercise. The media interest was huge. Hundreds of people who had been evacuated from their homes to make way for the reservoir also followed the spectacle.