To War

This article is about the chapter in Fire Emblem: Three Houses. For the chapters in Fire Emblem Warriors: Three Hopes, see To War! (Azure Gleam) and To War! (Golden Wildfire).

To War (Japanese: 戦乱の幕開け Opening of a War) is the twelfth chapter of Fire Emblem: Three Houses if Byleth was not a Black Eagle who sided with Edelgard in the previous chapter, and the final chapter of Part I.

To War Mural used to introduce the Lone Moon.

New units Seteth; Catherine, Cyril, Hilda Previous chapter(s) Throne of Knowledge Next chapter(s) Reunion at Dawn

“	Everybody here, young and old, is in your hands.	”	— Rhea

Plot

Main articles: To War/Script (Church of Seiros), To War/Script (Blue Lions), and To War/Script (Golden Deer)

Shamir reports that Edelgard's forces are going to meet up with the main Imperial army and invade Garreg Mach Monastery in two week's time. Rhea orders Byleth to assume her duties if something should happen to her in the upcoming battle. Afterwards, Seteth demands that Rhea explain just what Byleth is, and Rhea reveals that Byleth is the vessel for the progenitor god and that they will eventually become one with the power within and resurrect said god. Two weeks pass, and the Adrestian army arrives with Edelgard at its head. A climactic battle ensues, and Byleth seemingly gets the upper hand against Edelgard, but she calls in reinforcements led by Lord Arundel. Rhea entrusts the safety of the Garreg Mach citizens to Byleth, declares that she will not allow a repeat of the Red Canyon tragedy, transforms into a colossal dragon, and decimates the Imperial forces. Several Demonic Beasts attack and put Rhea on the back foot, but Byleth reinforces her after they evacuate the Officers Academy students. Suddenly, Thales appears and knocks Byleth into a deep ravine. As narrated by Jeralt, Adrestia wins the Battle of Garreg Mach and forces the Knights of Seiros to surrender, and Rhea goes missing. The Empire then begins a full-scale war with Faerghus and Leicester.

Calendar - Lone Moon

Lone Moon
Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
1	2 Saint Indech Day	3	4	5	6	7
8	9	10	11	12	13	14 Ignatz's Birthday
15	16	17 Story Event	18	19	20 Constance's Birthday	21 Free Day Choir Festival
22 Instruct	23	24	25	26	27 Shamir's Birthday	28 Free Day Rare Monster Sighting
29 Story Event	30	31 Imperial Invasion

Character data

Black Eagles Blue Lions Golden Deer

Characters
New units
Seteth Wyvern Rider HP 48 Inventory Iron Lance Intermediate Seal Level 23 Automatically from the start Catherine Swordmaster HP 46 Inventory Thunderbrand Intermediate Seal Level 21 Automatically from the start Shamir Sniper HP 39 Inventory Iron Bow Intermediate Seal Level 21 Automatically from the start if she was not recruited previously Cyril Commoner HP 35 Inventory Iron Axe Intermediate Seal Level 21 Automatically from the start Hilda Brigand HP 49 Inventory Iron Axe Vulnerary Bullion Level 23 Talk to her with high enough Charm and Axe stats
Available characters

Characters
New units
Seteth Wyvern Rider HP 48 Inventory Iron Lance Intermediate Seal Level 23 Automatically from the start, unless Flayn has fallen in Classic Mode.
Available characters

Characters
New units
Seteth Wyvern Rider HP 48 Inventory Iron Lance Intermediate Seal Level 23 Automatically from the start, unless Flayn has fallen in Classic Mode.
Available characters

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Item data

Items

Name Obtainment Method Gold Monthly stipend Silver Lance Tournament prize Steel Shield Quest reward: Eagle Eye Elixir Quest reward: Eagle Eye Goddess Icon Exploration: Talk to Magic Wielder in the Shadow Library of Abyss* Dark Seal Dropped by the Death Knight in The Battle of Garreg Mach Crescent Sickle Dropped by enemy Cavalier in The Battle of Garreg Mach

Strategy

Main article: To War/The Battle of Garreg Mach

Be warned that this is the last opportunity you will have to spend time in the monastery and recruit students from other houses before the end of Part I. Also note that at the end of the chapter, all of your inventory items will be automatically fully repaired, so feel free to cut loose during the final battle.

On the Azure Moon and Verdant Wind route, note that when Dimitri or Claude return in the next chapter, they will be automatically reclassed to their respective advanced class, and there will not be an opportunity to change their class again until Chapter 14. If they were using a magic-wielding class beforehand, they will lose access to their spells for the entirety of the next chapter, as their advanced classes—High Lord and Wyvern Master—are incapable of wielding magic. Lastly, it is suggested to avoid training Dimitri's or Claude's authority levels during the chapter unless they can surpass their current rank before the end of the month; at the start of Chapter 13, their authority will be increased to C if it is below that, but due to an oversight, any skill points they have gathered toward their next authority level will be lost at the start of the next chapter, even if they have higher than C authority.

Trivia

• The route split at the end of this chapter is the first one in the franchise to be determined by a decision made in a previous chapter, in this case the choice of which house to lead at the beginning of Chapter 1.

Etymology and other languages

Names, etymology, and in other regions
Language	Name	Definition, etymology, and notes
English	To War	--
Japanese	戦乱の幕開け	Opening of a War; this parallels the Japanese name of Outset of a Power Struggle, the corresponding chapter if the player sides with Edelgard.
Spanish	¡Es la guerra!	It is war!
French	La guerre est déclarée	War is declared
German	In den Krieg	In the War
Italian	Guerra!	War!
Korean	전란의 개막	Start of a war
Simplified Chinese	揭开战乱序幕	Prelude to the chaos of war
Traditional Chinese	揭開戰亂序幕	Prelude to the chaos of war

Gallery

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References

← Throne of Knowledge •	To War	• Reunion at Dawn →