The artillery observer could hardly get a view of the wire at all; beside which, it was so deep it would have taken a month to cut it by artillery fire.
"_The tank provided the solution_--the only solution.

The tank, by _crushing down the wire_--in a few minutes--was able to do what there seemed no other way of doing.

And the tank success at Cambrai was not a mere flash in the pan.

To the end of the war the Hindenburg line, or any other line organised in the same way, was entirely at the mercy of the tanks.
"The tanks, however, did not make their full weight felt until August, 1918.

They had become a very important factor before that, and had saved thousands of lives; but from the beginning of the counter-offensive of last year they were a dominating feature of the war.