While this type of wall mainly exists in England and the Netherlands, it is amusing how the English Wikipedia's main arguments are about saving bricks and possible military advantages, while the Dutch Wikipedia tell these walls are meant to protect fruit from weather conditions. The fruit would typically be planted at the south side. One of the ideas is that the bricks both protect against wind and keep giving some w…
It's also funny that the words crinkle and crankle derive from Old English and are obvious cognate of Dutch _kronkel_. But the Dutch engineers didn't call it a kronkelmuur?