To put this into context, a conventional army, the Dominator's Army, exists to control and conquer by force and violence. Destruction, killing and war are its hallmark. The basis of its organization is to enforce loyalty, obedience and unquestioned sense of mission. Unfortunately, the Dominator's Army is also an option to young men and women (especially the less advantaged) looking for stability, a career, a place to call home and a well defined and predictable future, and for a young person without many opportunities, this often becomes their best option.
The Gaian Army is an alternative whose purpose is to train youth to learn to overcome the brainwashing and programming of the Dominator society, which their family, their education and life in general has placed upon them. It exists to prepare youth to become Real Men and Real Women. It offers a similar sense of belonging and mission, as well as a future.
Related, what are the choices facing young people as they become adults? Leaving aside the choices for men, those for females seem even more limited. In my opinion, an almost universal reason that women decide to have a child is a sense of security that it is commonly believed a child will bring to their life. I believe it is a similar need for security that motivates people to join the army, or become a monk or nun. I also believe that the Dominator society controls people through their children.
In the Dominator's Army, young men (and women) are paid to learn, train and practice at killing.
Nowhere in soceity is there a similar place for youth to go and be paid to learn, quite the contrary in fact — an education must be paid for. In the Philippines, for example, even elementary schools charge for admission.
Once one's education is completed, or once the money runs out to continue, youth must find a job, and spend most of their waking hours "working for a living" which leaves little free time to pursue a higher education, even in self-study.
So, who though up that scheme? The Dominators of course!