1. Current events are reminding us of lessons of war that our generation forgot.
2. I remember in college stating that conscription should be the norm, and the more commercially minded students were aghast at the hit to the productivity of the economy that would entail.
3. A lot of flag officers point out that it's the professional army that starts a war, but a drafted one that ends it, after the professional one is gutted.
4. Governments prefer professional, volunteer militaries, especially if they plan to use them as a foreign policy tool.
5. By extension, mercenaries as well, whether foreign or domestic.
6. Examples would be the French Foreign Legion, and Blackwater.
7. The so called Wagner Group was used to pursue Russian policies and interests in Africa and the Middle East.
8. Eventually, they ended up on the frontline, in pursuit of any form of demonstrable success, after most of the professional Russian Army was decimated in the beginning of the Russian Ukrainian War.
9. Reportedly, there are now quite a number of private military forces funded by major Russian corporations and oligarchs, even the Ministry of Defence.