Axe-Easterlings

The Axe-Easterlings were a People or confederation of Tribes which invaded Rhûn and Gondor in the late Third Age.They seemed unrelated to the earlier Easterling Tribes of Rhûn as the Balchoth and Wainriders and were described as Small, stout, bearded like Dwarves and wielding Great Axes.

MERP
In MERP the Axe-Easterlings or their ancestors are represented by the Umli, a folk of (reputedly) half-dwarves fron the Northern Peninsula of Middle-Earth.

Speculations
The Umlir, described in some fan-fiction, seem to have been invented to represent the descendants of the older Umli and the not-named bearded and axe-wielding Easterling-Folk mentioned by Tolkien.