- Period:
- Second World War (1939-1945)
- Rank:
- Oberst (Colonel)
- Unit:
- Kommandeur Gebirgsjäger-Regiment 141 / 6.Gebirgs-Division (Commander Gebirgsjäger-Regiment 141 / 6.Gebirgs-Division)
- Awarded on:
- September 17th, 1941
Awarded for the role his Regiment played during the final stages of the battle of Crete, specifically the thrust to the Suda Bay and the capture of Chania. The success of these operations was in no small part due to Jais’s skillful leadership. He would also be named in the Wehrmachtbericht for his deeds.