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Waves of B-24 Liberators of the 15th Air Force fly over the target area of the Concordia Vega Oil refinery in Ploiești, Romania, unmindful of bursting flak, after dropping their bomb loads on May 31, 1944. Image courtesy of the Library of Congress.
Waves of B-24 Liberators of the 15th Air Force fly over the target area of the Concordia Vega Oil refinery in Ploiești