Translated on 2/2/2025 using ChatGPT

Sender:
Gefr. (Gefreiter) Diehl, Commandant at the German Military Hospital, Belgrade

Dated:
Belgrade, May 28, 1916

Recipient:
To the Merchant
Mr. Preacher
Kirchhain
near Kassel

Message:
Dear Nikolai!

I hope that you and your family are doing well. I am also in good health and am enjoying the beautiful springtime in the former Serbian capital.

Sending you warm greetings,
Your G. Diehl