SolkaTruesilver wrote:What about the tribes swearing fealty to Saruman we see in the extended edition of The Two Towers? Who were these people?
Those are the people of Dunland.
SolkaTruesilver wrote:I would guess that Rohan has a history of sending part of their supplies over to Helm's Deep as a storage facility during winter. That way, they always have ennough food to last a long, long siege, and they will have ennough to rebuild after invaders have been fought off.
As a supply depot, the Hornburg makes pretty good sense.
SolkaTruesilver wrote:And if you simply have "raiders" attacking your land, having a massive and quick cavalry force would be more efficient to the forts you are talking about. Forts might be better against formal military incursions to slow down the ennemy. But ultimately, it wouldn't prove much if faced against a real, massive invasive army like Saruman's.
I think you're misunderstanding the combined use of the forts and Rohirrium. The forts would act as watchout points and staging areas for Rohans cavalry. This would allow Rohan to attack its enemies rather then wait for its enemies to attack them. The problem that Rohan suffered was that its lands were being destroyed and its people killed or displaced by Saruman's force prior to the main invasion. Rohan was thus left weakened and less able to defend its land. If this problem could have been avoided, Saruman's armies would have lacked the aid of the people of Dunland and would have left Rohan's people, resources and armies mostly intact. Saruman's ten thousand orc army would have faced an army of Rohan nearly as strong at the time of the Battle of the Hornburg.
SolkaTruesilver wrote:How many Uruk-Hai were there in the party that captured Merry and Pippin? It seems Eomer's Rohirrims did quite a good job wiping them out. Rohan cavalry must be masters of ambush and night-raids themselves.
Unknown, in the books they were a "great party of orcs" IIRC and in the films they were clearly less then battalion strength. Though as you said and as is well known to most, Rohan's riders were masters of their craft. Cavalry charging into an enemy camp at night would no doubt break the enemy to tatters.
SolkaTruesilver wrote:It wouldn't surprise me if Rohan's horsemen actually went raiding the sorrounding countryside against smaller nations to feed themselves.
I'd be honestly surprised if the would. Rohan's natural resource was food, it wasn't just their own but also their only major export and the money from that export supplied their whole country.
SolkaTruesilver wrote:In short, if you invade Rohan, better keep a good force to protect your homeland, or you'll have packs of raiders trying to wreak your country while you try to conquer theirs.
Depends really, Rohan isn't fit for fighting in the mountains or in forested areas. They are a mobile army and as such need to fight in areas that support their style of warfare. The problem for Rohan is that they didn't raid others and failed to keep their enemies in check.