Poles pleaded with Hitler to free them from Stalin's grip New documents on attempts to Polish officers from Soviet POW camps have been found in the archives of the German Foreign Office. Russians continued negotiations concerning freeing a few hundreds Polish army officers even long after they had been shot death in the spring of 1940 - a Polish institute probing Nazi and Stalinist crimes has found out. Families of a few hundreds of Polish officers wrote letters to German Foreign Office pointing out their German origin or other kinds of connection to get their husbands, brothers and fathers back...