|In 1943 the Germans started to build a big bunker for the Luftwaffe at the Bornia Estate. The bunker got the codename Cäsar and type number L 487B. Early 1944 this bunker was completed, but because of a reorganisation within the Luftwaffe, the bunker was never put into use by the Germans.|
Only when the war was finished, the bunker was put into use by the Dutch Royal Air Force. However, it got the function for which it was built: Sector Operations Centre (SOC). As camouflage the Germans had painted windows and a balcony on the four meters thick concrete walls. The Dutch did it better: They just covered the concrete walls with a brick wall in which real windows were included (you can see the concrete of the real bunker through the windows).