Some Anglo Polish Staff Coversations War Plans against Germany from the 12th June 1939 month before world war two and the German-Polish war
[archiveorg AngloPolishStaffCoversationsWarPlansAgainstGermany12June1939 width=560 height=384 frameborder=0 webkitallowfullscreen=true mozallowfullscreen=true]
https://archive.org/download/AngloPolishStaffCoversationsWarPlansAgainstGermany12June1939/Anglo-Polish_staff-coversations_War_Plans_12_June_1939.pdf