Prepare Your Defenses
Build or locate military structures like Command Posts and fortified infantry houses. These buildings spawn friendly patrols and serve as rally points for your soldiers. Stock Profession Orders to convert villagers into defenders before the raid begins.
Engage Raid Waves
When a raid starts, your stationed soldiers will automatically fight back. Use Muster Orders to summon additional squads to reinforce weak points. Position yourself strategically to support your troops with ranged weapons or healing items.
Use Special Items
Throw 
TNT on a Stick or Molotov Cocktails into enemy clusters to deal area damage. Deploy a 
Totem of Healing to restore your health during prolonged combat. Your Scouters will blow horns to buff nearby allies, and Doctors can summon Iron Golems for extra defense.
Wave Scaling
Defeating early waves quickly increases the difficulty of later waves. Pace your offense to manage enemy strength, or commit fully to overwhelming force with maximum soldiers summoned.