It is a choice as to how you believe you can resist an invasion. One model is the citizen soldier. The model Norway used to have. Everyone is trained, and ev

It is a choice as to how you believe you can resist an invasion. One model is the citizen soldier. The model Norway used to have. Everyone is trained, and everyone is in some manner ready to go to war The benefit is that occupation becomes quite difficult. A strong resistance is guaranteed. The other one is the professional soldier. Great for going to war in other countries. Great if you can repel the invasion quickly. As we see in Ukraine, the number of soldiers you can mobilize becomes important as well. And in other to have many to mobilize you need a lot of trained soldiers. Or its just a canon fodder.