Satellite imagery appears to have captured the activation of a possible damage control system at an underground submarine base for Chinese nuclear-powered submarines operating from the contested ...

It is an underground base for submarines. Or maybe it isn't so unusual? Ukrainian media report that the Black Sea Fleet of the Russian Navy may have reactivated a submarine base in the city of ...

In a video posted on Telegram in early February, two floating barriers are shown at the entrance to the natural harbor at Balaklava in Russian-held Crimea. Pro-Ukrainian activists claim the ...

Clearly visible in the images: a partially submerged entrance to what appear to be underground submarine pens, beneath a hill next to the harbor. Construction at the base near Sanya also points to ...