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The Pentagon - Wikipedia
Pentagon Tours - U.S. Department of Defense
10 Things You Probably Didn't Know About the Pentagon
InsideDefense.com | Exclusive national security news from inside …
Pentagon History: 7 Big Things to Know - U.S. Department of Defense
Inside the Pentagon | JSTOR
Pentagon | History & Features | Britannica
IG finds Pentagon paperwork lacking on Ukraine aid
Pentagon ‑ Location, Building Timeline, 9/11 - HISTORY