Helsinki's sprawling underground tunnel network offers shelter from Russia's potential threat - ABC News
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U.S. Air Force on Twitter: ".@grandslamwing Security Forces Squadron Fly Away Security #Airmen conducted 130 missions, each one lasting an average of 21 hours. FAST is credited with evacuating roughly 30,000 people
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What lies beneath: tunnels for trafficking, or just a subterranean service? Time to rescue these spaces from the conspiracists
The Birth of Powered Flight and Air-to-Ground Communications > Air Force Space Command (Archived) > Article Display
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