Ever heard of RFGs? Tungsten rods coated in ceramic, dropped from low earth orbit?
https://www.popsci.com/scitech/article/2004-06/rods-god/
https://www.wideopenspaces.com/air-force-rods-from-god-payload-to-hit-with-the-force-of-a-nuclear-weapon/
http://www.freerepublic.com/focus/f-news/1418940/posts
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1977-090A
http://www.groundzeromedia.org/uforias-secret-the-under-cover-story/