Gehlen microfilmed his vast archives on the Soviet military – Google Search https://www.google.com/search?num=10&newwindow=1&sca_esv=39f50cfd4d7ec138&rlz=1C1ONGR_enUS1133US1133&aep=48&cs=0&hl=en-US&sxsrf=ANbL-n48h5Yrjd7OnynNGIVh3lPcFctPYw%3A1778002849425&q=Gehlen+microfilmed+his+vast+archives+on+the+Soviet+military&source=lnms&fbs=ADc_l-aHJKCxetkbp8HihrVlWP2E1iNtw1c6Bqm2EL8gFYaWSYxrIPO0Uw9d1XjTJ7RJppJ5s9QOa_pj4VFmNJ3duy6QBiZ2frsuBUw7XvJPzpMS1FT882sLdbtwQ0erXKO2X8HqnYQLpAj7UyhtYolyBR1wXUNIgvE3KDamRD9L3jNcftZwaBFW5DpJrVGwgnsLUrmLQR_qc7ZnbQbcoWS4ljZTjVhUHP-h0tT8wN9ANi3s1aWKm2I&sa=X&ved=2ahUKEwi3lf_h2KKUAxUPwvACHcgxD0wQ0pQJegQIDRAB&biw=1536&bih=695&dpr=1.25&new…