Hi all. Would anyone know how I can find out if my grandfather fought in the First World War? He was born in Zagrabela near Tarnopol in Poland now Ternopol in Ukraine. His name was Wilhelm Wolf WALTUCH rn 1889 to Wechne ISSERSOHN and Sussman WALTUCH. I think he was living in Vienna at the time possibly Favoritenstrasse 12
