What type of forces did Sauron had in the second age?

[Victariongreyjoy]

Originally Posted by Kuruharan

I don't think Eregion ever had much in the way of population, so I don't think it would be too hard for Sauron to militarily overwhelm it.



Had there been enough time for the Ringwraiths to assume their final form?

Let's say for fantasy sake they assume the form they were in Lord of the rings. Could they drive Ar-Pharazon's army back?