Ruling the Iderna is a king. The title is hereditary and the first Iderna king was the individual who unified the tribes. The current king is King Deribas.
They have several large towns, with thousands of residents, and have built a few small castles from stone.
Idernan soldiers are heavy infantry, preferring to fight on foot. They wear leather jerkins, a shield and a helmet for defence. Weapons include an axe, long dagger, and a spear. The axe and spear can both be used for throwing.
They have an army of several dozen thousand men.