This building represents the warehouse of the Robin, Jones and Whitman Ltd. that was requisitioned in 1940 by the National Defence. The warehouse was used as a temporary naval base for the Canadian army until 1941.

This interpretation building is currently used to present the military history of Gaspé and the main military highlights, notably during the Second World War.

In addition to a scaled model of the military installations of the bay in 1943, this building presents military objects and video testimonials relating the failure of the St. Lawrence Battle.