In August 1914, he took the command of the XIV Corps, succeeding General der Kavallerie
Viktor Dankl von Krasnik, who had taken command of the
1st Army. His Corps was part of the
3rd Army of General
Rudolf von Brudermann. In early September 1914, the devastating battles at the
Zlota and
Gnila Lipa practically destroyed the 3rd Army, and the
4th Army under General
Moritz von Auffenberg was also decimated following the
Battle of Rawa. The Archduke was chosen to replace Auffenberg on October 1. Meanwhile, the XIV Corps was taken over by Feldmarschalleutnant
Josef Roth on 30 September. Joseph Ferdinand was to remain in command of the 4th Army until early June 1916. At this time, General
Aleksei Brusilov launched the
Brusilov offensive at the juncture of the 4th and 1st Armies. The result was that Joseph Ferdinand's trenches were obliterated by the Russian bombardment and his troops surrendered en masse to the advancing Russians. In light of this massive set-back, the
German High Command insisted on his removal from command. The archduke went into retirement and was replaced by General
Karl Tersztyánszky von Nádas. Following the accession of Emperor
Charles I in November 1916, Archduke Joseph Ferdinand was offered the post of Inspector General of the Imperial Air Force. The archduke brought his interest in ballooning to the post, although the Army HQ immediately objected to the appointment. In spite of their reservations, the archduke was appointed on 8 July 1917 and he remained there until 3 September 1918.
Theodore von Kármán, then an
Oberleutnant in the Austro-Hungarian Luftarsenal, found Joseph Ferdinand to be an "ignorant and pompous fellow." As Inspector General Joseph Ferdinand visited the
Austro-Daimler Company where he was shown the company's first
six-cylinder airplane engine by
Ferdinand Porsche. In his autobiography von Kármán relates an exchange between Joseph Ferdinand and Porsche: : "Is this a
four cylinder engine?" the Archduke asked. : "Yes, Imperial Highness." : "Well, then why are there six cylinders?" he demanded. : Porsche with a side wink at me replied: "The last two cylinders are reserves." ==Marriages and issue==