Those that fell behind enemy lines had to be verified by a German observer.

The German observers must have noted the activity around the building.

Again shell-fire fell close about them, for the German observers already had the crossroads well covered.

He is the only known German observer to become an ace balloon buster.

Of the adult movement, a German observer wrote in September 1911:

In these lectures he supplemented the views of German observers with results from his own investigations.

I have read the statements of List, a German observer.

A German observer saw him and called down some 88s.

"Die Sommermelodie" had been considered a particularly weak song choice by German observers.

The German observer died of his wounds; his pilot was also wounded.