A serial of Douglas C-47 Skytrains of the 315th Troop Carrier Group, 1944, dropping 1st Polish Airborne Brigade into DZ "O" near Nijmegen in Holland, D+6 of Operation Market Garden.

The CG-4A Waco gliders on the ground were released 37 minutes earlier by the 313th TCG and 61st TCG (92 gliders between 1603 and 1610 hours). 

Minutes following this drop, the 313th TCG and the 316th TCG released another 97 gliders.

On September 23, 42 aircraft of the 315th finally got off the ground from Spanhoe with 560 more paratroopers of the 1st Polish Brigade, and dropped on DZ "O". By then, however, Operation Market Garden had stalled and although a tactical gain was not to be made, the Brigade did manage to send some of their numbers across the river to reinforce the British paratroopers trapped in Oosterbeek, and secure a corridor for their eventual evacuation.

Polish Brigade casualties were for the operation were a devastating 25 percent. This photo was taken by an official US Army Combat Photographer on-scene during the drop. 

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