Battles of the late Third Age

[Finwe]

As I said above, the Nazgul's fear of water is a strange reason for this battle, surely Sauron could have sent them directly to Dol Guldur over Dagorlad? Also they had to cross many other rivers before they reached the Shire.

Rumil, I believe that the Nazgul were needed elsewhere, and thus, couldn't all be sent to Dol Guldur. Even though the Nazgul had a fear of water, I think that they could ford a river if they absolutely had to. At the Ford of Bruinen, a few of them began crossing the river right before the flood came and wiped them away. They were probably afraid of rivers in full flood, not of fords, which had a relatively small amount of water.