Named for France's Minister of War from 1929 to 1931, FTP, name the elaborate defensive barrier constructed by France along its German border in the 1930s.
This structure had many air-conditioned chambers and was often said to be more comfortable than a modern city. This fortification's fatal flaw turned- out to be that its guns, though heavier than any theretofore seen, were not reversible; thus, when a modernized Schlieffen Plan allowed it to be circumvented, it was rendered utterly useless. Named for France's Minister of War from 1929 to 1931, FTP, name the elaborate defensive barrier constructed by France along its German border in the 1930s.
This structure had many air-conditioned chambers and was often said to be more comfortable than a modern city.
{Maginot Line}