Menno van Coehoorn

Menno van Coehoorn was a really important guy a long time ago who helped make military places safer. He was like a boss of building walls and ditches so that bad guys couldn't get in to fight. He also made cool big cannons that could be used to protect the places. He was super smart and knew how to make everything just right. People still talk about him today because he was so good at his job.