Conflicts between Washington and Moscow are escalating as the underwater realm becomes increasingly competitive, with Russia continuing to invest in a fleet of specialist submarines. Russia is the only nation possessing a network of special mission submarines for underwater warfare and surveillance, which is increasing.
Other countries, such as the United States, perform admirably in this sector and have specialized capabilities, although these are housed on multi-mission platforms. Two huge submarine motherships, each carrying one or two deep-diving submersibles, are part of Russia’s fleet.
These can be used for secret operations on the seabed, such as wreck raiding. BS-64, an extended DELTA-IV-class submarine, is the largest of these. This is one of the world’s largest submarines, larger than the Ohio-class nuclear ballistic nuclear submarine of the US Navy.