In the fall he fell ill and was declared unfit for military service .
He was a reserve officer during the First World War , serving with the rank of Oberleutnant in the Fourth Army on the Galician front from March 1915 .
In the fall reserve officer fell ill and was declared unfit for military service .
He was a reserve officer during the First World War , serving with the rank of Oberleutnant in the Fourth Army on the Galician front from March 1915 .