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The strange small hill is Opera 1, a small casemate armed with an AT gun and a machine-gun in a turret. On the other side of the road is a small caponier which seems to be linked to the casemate.
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The strange small hill is Opera 1, a small casemate armed with an AT gun and a machine-gun in a turret. On the other side of the road is a small caponier which seems to be linked to the casemate.
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