American rail mounted gun on the Western front in the First

An American 340mm rail mounted gun fires from its position at a target in the hinterland of the German front, on this occasion on the German corps headquarters approximately 30 km behind the front. The targets were reconnoitered previously by airplanes. A 22 man crew was needed to service the gun, for the movement and installment 122 men were necessary

Restrictions Only for Canada and Curacao and United Kingdom and United States Of America

Approximately Fires Hinterland Installment Necessary Needed Previously Target Targets

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