You really want to talk about strategical implication?
You look at Iran and US strategical position in 2000 and now, you can see US is getting stronger because NATO is getting stronger, there are no way you could have attack US without NATO response, which mean a strong NATO is going to mean a strong US, in fact, Russian invasion of Ukraine is a blessing.
Iran on the other hand, is more isolated than before, before even moderate European country like France or even Germany would have sided with Iran and even now, they are increasingly moving away from it, yes Iran has been around 2000 years, but things changed, the world in both military and diplomatic has changed a lot, now you can't really survive unless alone. Which mean you are going to have allied on your side, and the more the allies you have the less likely you fail.
Had you ever wondered why US can invade Iraq which literally have nothing to do with whatever happen with 9/11? Not because US have its allies on it nose, that's because of the commitment you get from having an allies that pick you up, and no country in the world don't need that, if US need that, then certain anyone would, now strategically, who do you think Iran can fall back on when they need them just like after 9/11? If you understand that, you will know why no one is stopping or try to stop Israel, the least China or Russia can do is to convene a UNSC session, and they didn't even do that.
That is the same deal with Israel now, do you really think the world will lean on Palestinian after this? Let's not talk about US or the West, like I said before, country like Russia or China wouldn't do anything to help the Palestinian, no talks, no message, no threat, nothing, more importantly, even hardline anti-Israeli country like Iran, they didn't help Hamas, or even openly support Hamas, they didn't say "Hamas good job, you have my backing" no, they said "This is not our doing" do you ever wonder why?
What your "Strategic" point of view are at least 2000 years too outdated, now it's about world support, you can't go in alone in any situation, Russia thought they could in Ukraine, see how that goes for them, and you need the world to have your back, that is power in 21st century. And that is something you missed.