Fullmetal Alchemist 26: 07/14/15
Fullmetal Alchemist Volume 26 by Hiromu Arakawa is the penultimate issue. It's also the volume that is mostly made up of over-the-top fight scenes.
There is no time left as the eclipse has begun. Everything is timed to the moon's shadow cast across the land. Here though, there is one more point of departure between the manga and Brotherhood. When I saw the equivalent scenes in Brotherhood I doubted for a moment if I'd read this volume!
Arakawa keeps the battle planted in Central. Although the other homunculi and humans join in, the battle remains mostly a continuation of a decades old squabble between Hohenheim and the homunculus in the flask. And so in the end, it's Hohenheim's methodical planning that saves the day more so than anything anyone else does.