Olog Hai-maneuver

[dogma]

"Fell Race: Add two Damage to the enemy Army, unless your opponent
eliminates a Leader or Character."

Does that mean, that the Free Player has to eleminate a leader of the shadows, to prevent the maneuver?
Or has the Free Player the choice of eleminating a leader of his own army to prevent this maneuver?

[Veldrin]

The Free Peoples Player can eleminate a Leader or Charcater in his own army to prevent taking two additional Damage Counters.

[glow=green,2,300]Veldrin[/glow]