The Advanced Modern Age is less about bigger weapons and more about better decisions. Drones make scouting cheap and continuous, intelligence infrastructure turns information into a resource, and precision weapons reward knowing exactly where to hit.
That shift cuts both ways. EMP effects that disrupt drones make electronic warfare a real defensive layer, and an opponent who blinds your sensors can make your precise army suddenly very imprecise.
Fights in this era tend to be shorter and sharper than the grinding wars of industry: find the weakness, strike it exactly, and be gone before the answer arrives. The empires that thrive are the ones that treat information as ammunition.