World War I explores the secrets of World War I. As in all wars, each side needed to keep secrets from the enemy. At the same time, they tried to discover the enemy’s secrets, using spies and code-breakers.
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Format PDF ● Pages 48 ● ISBN 9781615356072 ● Editor Britannica Digital Learning ● Publisher Britannica Digital Learning ● Published 2012 ● Downloadable 6 times ● Currency EUR ● ID 5750791 ● Copy protection Adobe DRM
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