I was rewatching "Unification" and something struck me. Towards the end of the second part, when the whole thing has been found out, Riker and the Enterprise
try to detain the trio of Vulcan ships, but a Romulan warbird decloaks at the last second and destroys the Vulcan ships rather than let them be captured. Geordi laments that there were over 2,000 Romulan troops on those ships.
Wait...what? Only 2,000 Romulan troops? Were they really planning to invade and occupy Vulcan with only 2,000 troops? How could this be? Why so few?