Militaries need to train in order to test systems, test weapons, gain experience, and be able to generally perform better and accomplish any given objective. In the modern era, militaries need to engage in what is called Combined Arms exercises. These exercises, as the name alludes to, coordinate activities across different branches of the military. So it might be the army coordinating with the navy to attack a target or capture some piece of land or objective. Maybe the army is on the ground directing fire from naval ships off the coast, or it could be the Air Force providing drone coverage as special forces achieve some mission.

Coordinating these activities during peace time is a key function of successful militaries. It is incredibly important to align these activities to be effective. Because of this, not only do you have militaries that work on combined arms and other trainings internally, but in the case of NATO, or perhaps the US with alliances in the Pacific we also engage in combined arms exercises with other militaries to further enhance and integrate those capabilities so that when it comes time to fight, forces have been trained how to respond and can do so more effectively. A great example of this is KATUSA - Korean Augmentation to the United States Army where Korean soldiers are actually assigned to and reporting to American military command and train alongside the United States.

The reason Venezuela is important, for example, is because it was an exercise demonstrating combined arms coordination and execution. It shows what the US military is actually capable when air, sea, and land forces engage to accomplish some objective.

So why is this important re: Iran (and Ukraine certainly). Because it's combined arms activities except that it's the real thing. Real equipment failures might happen, real lessons are learned, you are actually getting shot at. Lives are at stake. The military is actually battle tested, even if the opponent is hopelessly outmatched.

So when you write something like this:

> All evidence from NATO exercises and investigations is that Ukr/Rus conflict has virtually no relevance to OEF, OIF, or The Caracas Criminal Apprehension.

Those exercises, the lessons learned from the wars such as OEF, OIF, and even how Ukraine is today using and testing American military equipment in battle, matter a whole lot. And that's one of Xi Jingping's primary concerns with his military. They have done 0 of this. They've never really been shot at. They haven't tested their equipment in any sort of real battle. For the software-minded, it's like they've always been in development and haven't even touched a preview environment, let alone production. And worrying enough the US has demonstrated the capability to bypass and/or destroy Chinese and Russian military equipment including air defense and radar arrays - this is worrisome for those countries. If it comes time for a real war, well the only evidence you have so far is your state of the art equipment or close enough to it was absolutely fucking useless when it came to operations involving the US. Whooops.

They may start a war and find out they made a lot of bad assumptions and didn't train well enough and then what?

I'd encourage you to think about this a little more than you are here.

Yes, there were isolationists, but there weren't enough to change the fact that fascist/communist victories in Europe would be bad for America. The neoliberal thing where we support liberal democracies is an evolution of the Monroe doctrine, because we've recognized for a long time that the best path forward for America is free trade and interdependency with other like-minded countries.