Perhaps not Fengel himself would help, but Thengel, his son, was living in Gondor during most of his father's reign and so would want to bring aide from Rohan for Gondor. Thengel would proably hold enough sway over Rohan to lead many riders to the Steward's (Echthelion?) aide, even without Fengel's permission. Or if not, Thengel was probably friendly with Echthelion and could help the Gondorians in the persuasion of his father.
Does that make any sense?
|