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A view of the Maginot Line, a French defensive wall built after World War I. It was intended to deter a German invasion. France, 1940.
![A view of the Maginot Line, a French defensive wall built after World War I to deter a German invasion. [LCID: 18015]](https://encyclopedia.ushmm.org/images/large/efb50f39-1acf-48ed-b6eb-233867a410b9.jpg)