http://worldcat.org/entity/work/id/2298397841

The battle of brains

"This film illustrates the difference between World War II and the war of 1914, emphasizing the importance of mechanization, and contrasting the mobile tactics with the immobility of trench warfare. The scientific approach, both to problems of military strategy and to new weapons, is all-important. The film shows some of the work done by Canadian scientists to make these weapons as effective as possible."--National Film Board of Canada description.

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