I admit to not knowing much about this lake/inland sea, so my interested was piqued with the announcement of Iran's new indigenously produced destroyer launch:
eurasianet.org/node/62458
Apparently, both the Russians and Iranians are investing heavily in protecting their access to rich oil and gas reserves in the region, and in perhaps keeping others from exercising their rights, as was being discussed at the Caspian Littoral Summit a while back:
eurasianet.org/node/62409
Here's more info on the naval situation in the region:
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This comment from the Pravda article gave me a good laugh, in relation to what is essentially a large Russian lake:
"One should also take account of the destructive influence of the West, the USA, first and foremost, as they attempt to destabilize the situation in the region," the expert said.
Apparently, the USA still weighs heavily on the Russian psyche.
This one, from a baffled news writer made me chuckle as well, since 100+ Iranian missile boats are mentioned, but then it goes on to state that exactly TWO of the boats are actually equipped with SSMs:
"After Moscow, Tehran is the second power in the sea that adjoins Iran, Russia, Kazakhstan, Turkmenistan and Azerbaijan. Iran's Caspian force is estimated to be around 100 missile boats, two of which are equipped with anti-ship missiles".
It appears that news reporting, and editorial review quality aren't what they used to be.
Here's the link to the whole article, which also mentions the deployment of Iranian subs in the Caspian as well, in addition to their new home-built destroyer:
link
Here's a link to Russia's Caspian Fleet (not sure if it is up to date though, since its unclear when the article was posted):
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Here's info on the Iranian naval forces, though it isn't clear which are allocated to the Caspian Sea:
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The above, plus forces from some of the more minor nations in the region, might make for an interesting, and off-beat naval, or combined naval and air skirmish or two, if you are looking for some new scenarios.