Spoilers ahead for the Season 1 finale of Star Trek: Picard!
In Star Trek: Picard's season finale, "Et in Arcadia, Ego", we can see a huge Romulan fleet pursuing the main characters to the planet of the Synths.
It has been established that the Romulans are living in constant fear of "The Destroyer", so I can believe that they threw everything they have at their enemy.
However, the Romulan fleet is huge, and to me, it looks like most of the ships are actually war ships. In fact, the fleet is so big, that during the final stand off with Riker, both fleets look comparable in size to me.
But it has been established throughout the series that the Romulan Empire seems to be pretty much gone. How does that fit together? Where do the ships come from, and the crew, and how where they able to keep all the ships ready for battle without anyone noticing?