Why Didn't the West Impress Upon You Crane?

John Defterios looks at how russia has changed its tactics in the last few months. He says it is now using drones to target targets, rather than artillery and air strikes. It could be a tat il go rand mad for nato's ability to replenish their forces on the front from continental U.S., defterios writes. And he asks: why didn't the west impress upon you cranet, just massively, massively stack up on artillery?