Militia Training Camps V3
Our current armies are, let us call them 'more enthusiastic then skilled'. Given that the militia aren't too enthusiastic about being spear-fodder, that's a very unfortunate truth. Luckily, skill can be earned by training the militia a bit so they aren't just random people given a spear and a shield and sent into battle. By putting them through a six month training course, we can teach them how to do three things they already do with more acceptable proficiency levels and teach them to do something new as well. Those first three things are Marching, Forming A Shield Wall, and Not Running Away Or Else, and the new thing is Throwing Javelins At The Enemy, along with giving each Spear Militia a pair of Javelins to carry and throw before the main fight begins. We'll also spend some of the training time putting them through general physical training to make sure that all our Militia are fit and strong enough to serve on the battlefield.
So basically just take that last sentence off then, like this? I'm still somewhat inclined towards the first version though, just for the assuredness of a Very Easy, with the intention of doing a design level version of the Light Infantry Training once we've raised the floor of the quality level to get some actual professional light infantry without risking over-reaching by trying to directly turn our teaming masses of peasants handed a spear into proper infantry directly and in turn one.