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The 320th Barrage Balloon Battalion: The African American Heroes of the D-Day Invasion | The National WWII Museum | New Orleans
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Barrage balloon, Seattle, 1942 - Museum of History and Industry - University of Washington Digital Collections
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Lighter than air: 3 barrage balloons, one airship, and the rest are blimps. | Airship, Zeppelin airship, Airship balloon
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