diff --git a/src/viking.js b/src/viking.js
index 9017bfc8a..1752f28a1 100755
--- a/src/viking.js
+++ b/src/viking.js
@@ -1,11 +1,117 @@
 // Soldier
-class Soldier {}
+class Soldier {
+  constructor(health, strength) {
+    this.health = health;
+    this.strength = strength;
+  }
+
+  attack() {
+    return this.strength;
+  }
+
+  receiveDamage(damage) {
+    this.health -= damage;
+  }
+}
 
 // Viking
-class Viking {}
+class Viking extends Soldier {
+  constructor(name, health, strength) {
+    super(name, health, strength);
+    this.name = name;
+    this.health = health;
+    this.strength = strength;
+  }
+
+  receiveDamage(damage) {
+    this.health -= damage;
+
+    if (this.health > 0) {
+      return `${this.name} has received ${damage} points of damage`;
+    } else {
+      return `${this.name} has died in act of combat`;
+    }
+  }
+
+  battleCry() {
+    return "Odin Owns You All!";
+  }
+}
 
 // Saxon
-class Saxon {}
+class Saxon extends Soldier {
+  attack() {
+    return this.strength;
+  }
+
+  receiveDamage(moreDamage) {
+    this.health -= moreDamage;
+
+    if (this.health > 0) {
+      return `A Saxon has received ${moreDamage} points of damage`;
+    } else {
+      return `A Saxon has died in combat`;
+    }
+  }
+}
 
 // War
-class War {}
+class War {
+  constructor() {
+    this.vikingArmy = [];
+    this.saxonArmy = [];
+  }
+
+  addViking(viking) {
+    this.vikingArmy.push(viking);
+  }
+
+  addSaxon(saxon) {
+    this.saxonArmy.push(saxon);
+  }
+
+  vikingAttack() {
+    // const randomIndex = Math.floor(Math.random() * this.saxonArmy.length);
+    // const saxon = this.saxonArmy[randomIndex];
+
+    // 1. pick random Viking
+    const viking =
+      this.vikingArmy[Math.floor(Math.random() * this.vikingArmy.length)];
+
+    // 2. pick random Saxon
+    const saxon =
+      this.saxonArmy[Math.floor(Math.random() * this.saxonArmy.length)];
+
+    // 3. Saxon receives damage from Viking
+    const result = saxon.receiveDamage(viking.strength);
+
+    // 4. remove Saxon if dead
+    if (saxon.health <= 0) {
+      const index = this.saxonArmy.indexOf(saxon);
+      this.saxonArmy.splice(index, 1);
+    }
+
+    // 5. return result message
+    return result;
+  }
+
+  saxonAttack() {
+    // 1. pick random Viking
+    const viking =
+      this.vikingArmy[Math.floor(Math.random() * this.vikingArmy.length)];
+
+    // 2. pick random Saxon
+    const saxon =
+      this.saxonArmy[Math.floor(Math.random() * this.saxonArmy.length)];
+
+    const result = viking.receiveDamage(saxon.strength);
+
+    if (viking.health <= 0) {
+      const index = this.vikingArmy.indexOf(viking);
+      this.vikingArmy.splice(index, 1);
+    }
+
+    return result;
+  }
+  showStatus() {}
+}