Sosus/Iceland
 

After reading this, I'm wondering how P-3/P-8s 'hunting' Russian submarines. I've thought Sosus is dead or is the plan to reactivate that too?

Otherwise isn't it rather expensive and inefficient to cluster the Atlantic with sonobuys when you have no rough idea about the locations of subs?

Pretty sure that SOSUS is still active.

I can't find anything on it post September 2005 (upgraded).

In my best Bill Clinton imitation, that would depend on what dead means. :D

SOSUS as a program no longer exists, so in one interpretation SOSUS is dead.

However, IUSS (Integrated Underwater Surveillance System) is alive and doing well.

The Navy being what they are, and the underwater surveillance people being what they are, there is naturally not a lot of public information on the IUSS.

After Walker, this type if information is strictly limited to help prevent another Walker/SOSUS incident.

Ok, was not aware of IUSS.

But it sounds reasonable, without such a system, the investment would not make mauch sense...

It's really crazy how the patterns of the cold war emerge again. If you would have somebody told that in the 90's he would think you would be insane...

Probably adequately sums up what some parts of the world are like these days.