The 1th World war is marked between others by two technological innovations which bring some change in the course(price) of conflict: the development of the military role of the aviation, and the invention of the tank. These new strategical tools require important infrastructures, installed(settled) at the back of lines for the interview(maintenance) of machines, billeting, training(formation) and entrainement of crews(equipages), storage of rooms(parts,plays)... All over its closeness with frontlines during offensives of 1918, ainsiqu' with the capital, the territory Senlisien concentrates infrastructures bound(connected) to the new weapons. A visit made by a guide-lecturer of the Tourist office of recognised(acknowledged) Senlis by the Ministry of Culture will allow to discover tracks left by the development of the aviation and of tanks on the territory.