The equipment may be similar, but logistics and placement change

Would fighting Russia, China, or North Korea require different equipment?

The broad equipment set would not be radically different, but the scale, placement, logistics, infrastructure, and operating context would change.

A war against Russia, China, or North Korea would draw on many of the same broad categories of capability. The differences lie in where the equipment is needed and in what quantity. Logistics and infrastructure would also have to support distinct theaters. Force posture and sustainment are therefore as important as the headline platform mix.