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WWII is not the only time. SMELLIE and I are acquainted with a fine and extraordinary Gentleman who lives in San Diego, California, who completed a tour in Korea. He flew as a Bombardier/Navigator in a WWII A-26, low level, at night, in the Mountains of Korea, attacking enemy transports, trains, ships, buildings and railroads. Over 80% of the original members of his Squadron did not return from Korea.
When the North Koreans started hiding their trains in tunnels, he started skipping 500 pound bombs with delayed action fuses into the tunnel. There is a VERY small margin of error in this practice because too high or too far left or right and the bomb hit the mountain. Too low, and the bomb bounced back up and hit the aircraft. AND, these old WWII bombs and fuses, supposedly delayed action, sometimes went off instantly when they missed the tunnel and hit the solid rock. Not very conductive to longevity if you are dropping one.
When the North Koreans started putting Flak Guns around the tunnels, a second aircraft accompanied the first one to try to suppress the anti-aircraft fire. Attacking anti-aircraft guns at night, with mountains all around, is not a healthy lifestyle either.
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