This card most obvious target might be our friend Beregond (or Beregond), but in general there are so many possible good targets, especially across the table in a Fellowship with lots of Gondor heroes/allies (Boromir, Denethor and Denethor, Defender of Rammas, Knight of the White Tower and so on)) that I always find a good use for it.
Behind Strong Walls
Event. Cost: 1.
Action: Ready a defending Gondor character. That character gets +1 until the end of the phase.
...seven walls of stone so strong and old that it seemed to have been not builded by carven by giants out of the bones of the earth. The Return of the King
Heirs of Númenor #8. Tactics.
Yeah for 1 point, +1 defence, and a broad target base, this card it a great go-to when you need someone to double-up defensive duties. — k_rock 8