- City alignments based on AD&D.

Just like Tolkien's orcs, who are constantly killing each other... But in his work, they are both chaotic and lawful; the conclusion is that Tolkien's world cannot be fit into AD&D.

But that's not the case!
Remember the chapter where Pippin and Merry were kidnapped by orcs. There were three groups, as far as I remember: Sauron's orcs, Saruman's orcs, and wild orcs from the mountains, who came to avenge the death of "their own." In that chapter, you can see the difference between the organized orcs – those subordinate to Sauron and Saruman