Comment by burnt-resistor

Lighter, faster, smaller, more numerous, and more mobile vehicles might make sense because the era of the slow moving castles near the front on land, sea, and air seems about dead.

Drones of all sorts out front with more numerous "ripsaw"-like vehicles with shoot-on-the-move mobile artillery (RCH 155) and air defense (AAA like Skyranger 30 and SAM like M-SHORAD) just behind.