Lacking Natural Simplicity

There is a very interesting six-part series of articles (I, II, III, IV, V, VI) written by military historian Bret Devereaux at A Collection of Unmitigated Pedantry that analyzes the Siege of Gondor in the Peter Jackson film and in the Tolkien book, including logistics, operations, cavalry mechanics, the physics of supernatural creatures and their weapons, and the role of motivation and cohesion. As is not surprising, the sequence in the Peter Jackson film makes compromises with the story to better suit film, while the sequence in the book is better grounded in the reality of historical battles.

There is also a review of the Gondor Heavy Infantry Kit, which depends on the discussion of armor in the Lannister Infantry Kit review.

And, there is a three part series (1, 2, 3) on War Elephants.

His Blog Overview gives a good description of what he's doing on his blog and his credentials as a professional military historian.