A hostile US and Russia would give us the increased defense spending we already have, at least we wouldn’t have to buy US equipment.

That’s part of what I was referring to. We’d spend this locally or among partners. Right now a lot of NATO spending goes to the US military industrial complex.

Then the other economic impact is that the US loses one more leverage tool to coerce us on various trade disputes. Which means we’d be able to negotiate better deals for us.