Hasn’t the US been preparing for war with Russia since at least 1945? The Military-Industrial-Intel Complex is terrified that there might be a day when the US does not need to be prepared for war with Russia/China/Grenada, etc.
I think Grenada was an important part of the end of the Russian war machine of the time.
It was bold statement by Reagan and helped end Russia’s penetration into this quiet part of the world.