This is what I don't get about the Russian invasion. Russia is a technologically advanced country (look at their space programme), they've had all this time to

This is what I don't get about the Russian invasion. Russia is a technologically advanced country (look at their space programme), they've had all this time to develop drones, missiles, satellites, etc - yet they send in tanks and troops like it's WW2. They've spent years developing assassination techniques, and have used them in the past to remove opposition leaders, and yet they have resorted to a ground invasion to remove the Ukraine government. None of it makes sense, unless Putin is trying to get the West to start a hot war?