No surprise that US military planners have been planning for the wars we've actually been fighting, which are low-intensity counterinsurgency operations. The goal is to minimize US and civilian casualties in an environment where we have superiority in air, land, and sea.

And it makes sense to do that. If we ever have a shooting war against Russia or China, the nukes will start flying and a) many people will die, but also b) our existing weapons supplies and industry will be destroyed.

We're building weapons that are well suited for the environment they are meant to be used in.