Comment:  The WSJ article shows lots of pictures.  The U.S. Army video shows the construction.

The Cold War was a time of great fear and concern as nuclear powers faced off.  

Designated shelters were in cities everywhere and Civil Defense was very present.  People were encouraged to build home fallout shelters stocked with supplies to survive.

https://www.sfgate.com/living/slideshow/Fallout-shelters-of-the-50s-60s-200615.php

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https://www.wsj.com/world/greenland-us-camp-century-nuclear-base-91e8abea?st=aNvw5W&reflink=desktopwebshare_permalink

"The U.S. Nuclear Base Hidden Under Greenland’s Ice for Decades"

By 

 and 

Marina Vitaglione

May 13, 2025 11:00 pm ET

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https://www.youtube.com/watch?v=1Ujx_pND9wg

The U.S. Army's Top Secret Arctic City Under the Ice! "Camp Century" Restored Classified Film