In January 1914, the French Army had 47 divisions (777,000 French and 46,000 colonial troops) in 21 regional corps, with attached cavalry and field-artillery units. Most these troops were deployed inside France with the bulk along the eastern frontier. With the fear of war with Germany a further 2.9 million men were mobilized during the summer of 1914. This book details the French Army's first year of the Great War.