i55916
Instance
a fortification built before World War II to protect France's eastern border; initially considered to be impregnable, it was easily overrun by the German army in 1940
- Status
- active
- Source
- Princeton WordNet 3.0 – 03705134-n
a fortification built before World War II to protect France's eastern border; initially considered to be impregnable, it was easily overrun by the German army in 1940