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

[Morthoron]

Originally Posted by Victariongreyjoy

So it's more likely Ar-Pharazon and his army would stand their ground and try to kill the nazgul? Or would sight of his massive army scare the wraiths away instead?

Yes, Ar-Pharazon's army was the greatest "mortal" army ever assembled, and basically caused Sauron's army to flee in terror. Consider the audacity, even as deluded as Ar-Pharazon eventually became, to invade Valinor. Upon seeing the "Great Armament", the Valar themselves invoked Eru's aid to stop the siege outside the walls of Tirion.