Underground Nests for War Airplanes
THE next war, all agree, will be a war in the air; and the advantage will be with the force striking the first blow. Obviously, the attack will be made on the fixed air bases of the other army, since that will inflict most damage from a military point of view.
Well, this pretty nicely sums up the fight in WWII on one page. France was building the Maginot line while Germany was building rockets.
World’s Greatest Underground Fortifications Guard France
INVISIBLE and sunk beneath the rolling and wooded terrain in Lorraine is a great underground fortification system, 200 miles long, guarding France’s vital industrial area.
The forts, which cost 150 million dollars, are the greatest in the world and defy attack by gas, infantry, artillery, or air bombs. Living quarters, magazines, power stations, and control stations are out of reach of all means of attack. Bulkheads in the underground passages shut out both gas and invaders and armored posts at various points bring additional protection.