Leading the Charge

Leading the Charge is a quest given to you by Jeralt in Fire Emblem Three Houses. It is the mandatory quest of chapter 1 to progress through the game and unlocks the battalion mechanic in-game.

Requirements
"Starting with this month's mission, you can now lead a battalion into battle. Search for the Tactics Primer in the captain's quarters and peruse it to get up to speed."

Quest-Giver Dialogue
"A real battle this month, huh? I hear even the Knights of Seiros are involved. I never taught you much about tactics, but there's a primer on it in my room. Give it a read."

Location
Given to you by Jeralt located in the Dormitory - 1F

Rewards

 * Jeralt's Mercenaries
 * Church of Seiros Soldiers
 * Seiros Mercenaries
 * 300 Renown

Strategy
This quest could throw some new players off with a glowing marker that's easy to glean past, but the tactics primer is located in the Captain's Quarters on the Second Floor of the Monastery in Second Floor Occupants. You'll see a bright yellow glowing marker on your minimap signifying it's location and a blue glowing spot in his room signifying the item in-game. Just press A to pick up the item and finish the quest. Easy enough.