The war is divided between the (Yggdmillennia) and the Red Faction (Mage's Association), each fielding a complete set of the seven standard classes.
If you want to see legendary heroes fighting in armies, dragons clashing with sun gods, and a homunculus falling in love with a saint, Fate/Apocrypha is a journey worth taking. Fate Apocrypha
"Two teams of seven legendary heroes fight in a massive Holy Grail War, refereed by Joan of Arc, while a homunculus boy tries to survive and find meaning." The war is divided between the (Yggdmillennia) and
Fate/Apocrypha : A Grand Conflict in a Divergent World is a cornerstone of the sprawling Fate franchise, initially released as a light novel series before being adapted into a popular anime. Unlike the more intimate seven-way battles of Fate/stay night or Fate/Zero , Apocrypha escalates the stakes into a full-scale Great Holy Grail War, pitting two massive factions of Heroic Spirits against one another. The Setting: A Fractured Timeline Unlike the more intimate seven-way battles of Fate/stay
If you watch for the fights, this series delivers. Reviewers from Anime News Network and Facebook highlight battles like Sieg vs. Karna and Achilles vs. Chiron as franchise highlights.