Those militiamen are very good with their javelins. Drafted into the army they are armed in just their plain clothes, a small leather or wooden shield and plain iron helmet when available, is their only means of armor. Their best protection however is to move up to the enemy fire off their javelins and back out again, before the enemy missile troops or cavalry returns the favor. Heavily outclassed by better and further shooting archers, those militiamen have to fight against unfavorable odds. Even if they aren’t the most valuable troop in the Armenian arsenal, their position in the battleline is vital. Used in both the preliminary phase of the battle, but also to weaken a potential breakthrough point for the heavy cavalry to charge through, javelin men are a cheap unit, whose usefulness is much greater than its value. Historically, they were skirmishing javeling throwing troops. Not ever fighting on their own but complimenting a larger force or army. While they are useful, they are not soldiers and in the first sign of trouble, they will break. A wise commander should know this limit and not stray beyond it.