I assume there would be a lot of people that research and make plans about hypothetical scenarios, and that would help inform the state on how to defend imperialism from possible threats. With the development of more advanced technology, I feel like if these guys were really good at what they were doing they could probably come up with horrifying methods of mass control or something.
But also, my impression is that as with most things under capitalism, the bureacracy could just be totally incompetent and end up being a paper tiger. When the day comes where the status quo has to be sustained by extreme violence, all of the fancy tech and plans break down and everything devolves into regular war.
Reality probably lies somewhere in between the two, I just really hope the technocracy isnt competent enough to be that good at doing evil, cause if thats the case we have a very bleak future in front of us.
What it lacks in honesty, productivity, and good intentions it makes to for in bulk and its fundamental purpose in stoking and then profiting from imperialist wars.
It's massively wasteful but also still produces high-precision drones used on dense civilian targets in a war created through their lobbying 8000 miles away, torturing an entire country. And then they fight hard for that war to continue in perpetuity.