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amur river

1 matching event · March 15, 53 → March 15, 53

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Imperial Frontier Fortification Expansion

Amur Region Border Forts · Siberia · Russia

The Russian Empire intensified its fortification efforts along the Amur River frontier, aiming to secure its eastern borders against potential threats. New forts were constructed to estab...

amur river border borders colonialism command posts defense

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