Kuhn together with his friend Lieutenant Albrecht von Hagen had arranged for the explosive delivered by Helmuth Stieff to Claus von Stauffenberg .
On 20 July 1944 , Ziehlberg was ordered to arrest his Ia staff officer Major Joachim Kuhn for his involvement in the 20 July plot .
Major together with staff officer 's friend Lieutenant Albrecht von Hagen had arranged for the explosive delivered by Helmuth Stieff to Claus von Stauffenberg .
On 20 July 1944 , Ziehlberg was ordered to arrest his Ia staff officer Major Joachim Kuhn for his involvement in the 20 July plot .