Hermann Greiner
GeorgHermann Greiner was a German former Luftwaffe night fighter ace, recipient of the Knights Cross of the Iron Cross with Oak Leaves and a squadron commander in the prestigious Nachtjagdgeschwader 1, translated in English as the 1st Night Fighter Wing, the most successful Night Air Superiority unit of any nation during World War II. The Knights Cross of the Iron Cross and its higher grade Oak Leaves was the fourth grade of Nazi Germanys highest award for military galantry and was awarded to recognise extreme battlefield bravery and successful military leadership. Greiner primarily engaged British RAF crews in their bombing campaigns over greater Germany and was credited with 51 aerial victories over allied aircraft, having destroyed four American bombers during daylight hours and 47 British bombers at night.
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Source: Wikipedia