Hee hee. Everyone here always has SOMETHING to do. As St.Paul says, pray unceasingly.
Having said that, I will throw my churchwarden into The Ring to make what I trust shall be useful comments.
The Natural World: Free Peoples vs Mordor (Orcs take such delight in trampling; good trees being felled by Saruman for the fires of Orthanc....I assume these are being covered in your chapter, amongst others.)
There and Back Again: From the Shire to Mordor and the Return of the Hobbits
The Long and Winding Road to Mordor ( Ok maybe too close to an LOTR meets The Beatles, but this post is a brain-sturm und drang session
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Looking forward to your finished work, or whatever you would like to share before that. 
Anyone who displays Robert E Lee and has familiarity with Tolkien is honored more than a brother. Thank you for taking the time.
Nature, natural world, these do seem to fit better. Not just Mordor, not just orcs, but the whole history of vile creatures is covered.
There and Back Again must be included in some manner. I don't think it will fit chapters but perhaps a section title can be spruced up by your suggestion.