In the evening, Antwerp was originally dark, but it became brighter because of the twilight shining through the clouds.
Twenty-five kilometers east of the fortress, in a basin formed by hills, the German First Army Group Third Reserve Corps Commander Von Bessler stood on high ground, quietly looking ahead through a telescope.
"Boom!" A loud noise.
In a storm-like cloud of smoke, the entire ground shook, as if there was an earthquake.
When the shell left the barrel, it almost sucked the air off the ground, causing a gust of wind. Everyone instinctively bent down and covered their ears.
That was the roar of the 420MM heavy artillery "Big Bertha." Its range could reach 14 kilometers, with a shell weighing 1000 kilograms, requiring 200 people to operate, and it could only fire two shells per hour.
