Nice article once more, by you. Especially interesting in context to the five (?) Kilos being deployed in the black sea right now.
They are certainly targeting Ukraine, but maybe they left harbour because a) the destruction of surface ships by Neptun missiles and drones, and b) being in reach of the
blue spear system supposedly to be delivered from Israel..
I wonder how Ukraine could detect them now, take it they will snorkel at night only.