User blog:Glorfion/Helms Deep in the 4th age

Did the dwarves inhabit helms deep at the end of the fourth age? Or did they just take control of the Glittering Caves behind Helms deep? And could the fourth age be named the Dominion of Men and Dwarves because the dwarves took control of all the fortresses and cities after the ring was destroyed? Thanks for all comments!!!!