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> Yes, tanks aren't invulnerable, but anti tank missiles are expensive, bulky, and require some advanced training.

In general, I don't disagree with your post, but even "cheap" RPG-7 (or a more modern, NATO equivalent) would be an effective method of, if nothing else, slowing enemy tanks. In general, "boom wtf was that" is going to stop an advance even if it doesn't kill the tank.

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That's only if the RPG hits the tank, which unless you can get pretty close it probably won't. They're useful for urban combat where a person can get close without being noticed, but for an open battlefield you really need a much more advanced guided missile system which can hit targets kilometers away. And even if you are in a circumstance where you can hit a tank with an RPG, there is a pretty big difference between slowing a tank for a few minutes while it evaluates the situation and disabling a tank. Finally, while an RPG is cheap, it's still bulky - each round is about 4 kg. It's not as bulky as a missile but no one is going to carry enough rounds at one time to threaten a coordinated group of armored vehicles, at least not without sacrificing other capabilities.

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