Resembling the policies of Admiral Zemker, doctrine produced under Walter Wever's tenure as Chief of the General Staff (1933–1936) relegated naval concerns to fourth place on the list of priorities in the Conduct of the Air War in 1935—which remained unchanged. Nevertheless, much of the progress in naval aviation was initiated by the Luftwaffe, rather than the Kriegsmarine. General Hellmuth Felmy, commanding Luftlotte 2, set up a specialised naval aircraft corps in his command under the control of Hans Geisler—a naval aviator and former sailor.