So long as Frodo is alive and on the battlefield, friendly Fellowship models gain the Fearless special rule. Additionally, a Fellowship Army can never be considered Broken whilst Frodo is alive, even if he escapes the battlefield in Scenarios where this applies.
The Bond of Fellowship
Friendly models within 3" of another friendly Fellowship model may re-roll a single failed To Wound Roll when making Strikes.
Traverse the Wilderness
Friendly Fellowship models gain the Woodland Creature and Mountain Dweller special rules.