Striking for the first time in the longest mission yet flown by the Mediterranean based bombers, Boeing B-17 Flying Fortresses of the 15th AAF attacked the railroad yards at Venissieu, five miles south of Lyon, France, on 25 May 44 with reported hits · 25 May 1944National Archives Catalog (RG 342-FH) · U.S. Air Force photograph 342-FH-3A19337-51443AC