The Sad, Sad Tale of The Druedain.
Amongst Tolkien's many, many Human peoples, the Druedain might be the saddest in my opinion.
Both for their current situation, their history that led to them to this point, their very real and tragic real life inspirations, and the way everyone still alive, Drunedain, Numenorean, and everyone else has forgotten their true history and it's signifigance.
The Druedain's origins go back to the First age, where they(or the ones of them who wandered west into beleriand at least)were one of the Human people who fought against Morogth on behalf of the Valar, and upon the war's conclusion, they like all the rest of these Humans were given the name Edain, and many wonderous gifts.
Long life, massive size and strength compared to regular folk, and an island paridise kingdom to live in.
They called this land Numenor, named Elros, son of Earendil as their first king, and settled their new home, and so, these disparate and formerly different men of many origins joined together and mixed, becoming the Numenoreans.
And the Dru who joined them became the Druedain, one of the founding people of Numenor.
We don't know how much the Druedain intermarried with the rest(being the only ones that were visually distinct from the rest by the end) but given they and other men intermarried already in the first age(Earendil and all his descendants have Dru blood in their veins for examole), it's rather certain that enough did that by the time Numenor fell, most if maybe not all had at least one Druedain ancestor.
Whatever the case of that may be, both in Arnor and Gondor alike, the legacy of the Druedain(The great hunters, scouts and trackers of the Numenoreans) live on in the form of the rangers of North and south, both groip with incredible skill in all related to stealth, wilderness survival and hunting.
The skills of the wild that Aragorn displays was not learned just from personal experience. It, and the skills of all of rest of Dunedain, north and south were a distant, distant descandants of the Druedain's far greater, passed down through the ages until finally it ended up here, at the end of the third age.
Humanity is in truth, all one people, not many. They were split apart by unnatural means, and it is when Men combine their strength rather than let differences divide them, that they are truly strong.
But divided they were, for when the Numenoreans made contact with the outside world anew, after countless years of iaolation, the Druedain foresaw that their brethren would eventually fall to darkness, and so as they grew darker and darker, the Druedain began to sail back to Middle Earth, quietly, and rejoining the rest of the Dru, who had not left middle earth for Numenor.
And here we get into a usually overlooked tragedy, for during the dark years, when Sauron worked in Middle Earth, one of the people who opposed him and his were the Dru, now forever renamed the Druedain.
The image most fans have of Druedain was Tolkien obviously drawing inspiration from various primitive, tribal societies that Europeans encountered across the world during the age of exploration and colonization.
But that's not actually true, for the Druedain were inspired by two things, the first being the real life Woses, the mythical wild men of Europe's still untamed wilderness in medieval times.
But the second was the now forgotten native peoples of Europe, who nobody remembers anymore. And there are a lot of those, and most don't care to remember them any more.
For all the minorities of Europe who survived up to this day, many, many, many more were snuffed out forever by Europe's many waves of immigration and conquest, and nobody remembers them anymore, their culture forgotten, their languages dead, and whatever they made torn down and replaced by those who took their lands from them.
And so it is with the Druedain. For the state we see them in now, is not their "Natural" state so to say.
For the Druedain were also the true heirs of Numenor, as much as the Gondorians and the Arnorians ever were, and when they rejoined their distant kin, they helped them create a great and powerfull society, capable of raising massive and expertedly carved stone statues all across the lands that would one day become Rohan.
These are all that remains of their people's golden age, for these men who fought Sauron and his forces during the Dark years, were in turn conquered by another people who served sauron, and in turn took their lands from them, and built over their homes, and claimed rulership over these lands.
The ancestors of the oathbreakers of Dunharrow, drove the druedain into the hills and forests, where they were forced to live on nothing but hunting, and there they slowly forgot their roots, and were forgotten by all others.
Knowing all of this, it completely changes a lot of one's understanding of this People's oath to Isildur, and their ultimate rejection of it.
"Thou shalt be the last king, and if the west prove mightier than thy Black Master, this curse I lay upon thee and thy folk; to rest never until your oath is fulfilled. For this war will last through years uncounted, and you shall be summoned once again ere the end."
And such was the power of this oath, that upon breaking it, it destroyed their very spirit, and they fled and they hid in the mountains and dwindled and became fewer and fewer, and as the Druedain, they lost their homes, but not to sword, but their own cowardice and the gruesome power they had brought down upon themselves.
It's a very good tale, but when you know the background of all men, it becomes intimately intertwined with Tolkien's themes.
For what Isildur asked the mountain men, was to uphold their oath to fight sauron, and by doing so, earn redemption for their previous acts and crimes they did under his name.
And they refused to repent for their wicked ways and deeds and redeem themselves, and so they were cursed and destroyed... By a kinsmen of the people who's land they took by might and evil deeds.
There is something remarkably fitting about that.
However, justice did not heal the Druedain's wounds, for they did not come forth to join Elendil and Gil-Galad to fight sauron, as their ancestors had against Morgoth.
Instead they hid in their forest and hills, until such a time that they would be called upon once more, NOT by their kin, but a people who they had a personal and very real grievance with the Rohirrim.
For the Rohirrim became the stewards of their former lands after many other came and went, and they did not have a good relationship with the Druedain eitger, mistaking them for beasts or monsters, and turn hunting them...
But in the end, despite this, these two were able to make peace, and common cause, and bury the hatched. For though not direct kin as they were with the Gondorians, they were still both Human beings, they both fought evil, and by doing so, they both managed to survive and see another day and Age of peace and hope.
The tale of the Druedain is one of eternal sadness, but withouth hope. But it is a harsh reminder that important things, and people ARE forgotten. Good people can, and have been defeated, and evil folk can and have taken that which rightfully was theirs.
It's a bittersweet ending, like most things in the Legendarium.