Britain could equip civilian ships with cheap, portable fibre-optic sonar systems capable of detecting Russian submarines and warships from more than 60 miles away.

INTELLIGENCE SUMMARY

Britain could equip civilian ships with cheap, portable fibre-optic sonar systems capable of detecting Russian submarines and warships from more than 60 miles away. The technology, already tested by the Royal Navy and used by the Dutch military, could help offset Britain’s shrinking fleet as Russian naval activity around UK waters and undersea cables increases. Source: The Telegraph