Dan Farley, then just 17 years old and fighting with the 5th Ranger Battalion, was one of the soldiers who attacked Maisy.

"We go up there and it's all underground bunkers," he recalled in 2014 speaking to Fox8Live TV. "We get in there and we start hand-to-hand combat. The Maisy battery was just as bad as Omaha Beach, if not worse... I got shot in the shoulder. I think I was shot by a sniper."

In 2020, a follow-up excavation revealed new bunkers that "hadn't seen the light of day in 75 years" and are "part of one of the darkest chapters in modern history" according to Josh Gates, host of the Discovery Channel's Expedition Unknown, speaking to Fox News.

Unearthed: 6 forgotten war bunkers you can now explore