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Eagle has been researching unmanned submersibles for quite some time now, with technology far more advanced than any other place.
Normally, these submersibles are responsible for detecting various hydrographic data and mapping out the local riverbeds to prepare for submarines’ entry. After all, a submarine must be familiar with the local terrain and hydrographic data for better concealment.
Unmanned submersibles can also perform reconnaissance and counter-reconnaissan ...
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