Once well behind the German lines, he had started his work even before dawn.

It is there that we have to break through the German lines.

"We could not risk following him to the German lines."

"How far is it to go past the most forward of the German lines from here?"

Yes, he agreed, but be may shoot from a stand in the German line.

A moment later he crashed below, far behind the German lines.

I know' how to find some of the German line.

Running short on ammunition, he decided to return to the German lines.

Again this would create a gap in the German lines.

Just four days later, he was himself shot down behind German lines.