Iran launched unsuccessful attack on UK's Diego Garcia

https://www.bbc.com/news/articles/c5yljdgwppzo

Foreign secretary denounces 'reckless Iran threats' after missiles fired at Diego Garcia

Iran reportedly fired two ballistic missiles at Indian Ocean base, but neither reached the target.

The article kind of downplays the most interesting elements. Not an expert, but to my limited understanding:

* I think this is the longest-range use of a ballistic missile in anger, possibly ever?

* This seems to reveal previously-unknown range of Iranian ballistic missiles and, if true, could touch basically all of Europe?

> This seems to reveal previously-unknown range of Iranian ballistic missiles and, if true, could touch basically all of Europe

True but they have also literally launched multiple orbital satellites from iran on iranian rockets. Eg. The Noor 2 spy satellite and before that the Noor 1 series https://en.wikipedia.org/wiki/Noor_2_(satellite)

These are in orbit to this day. They regularly post images it takes of US military bases. Essentially it’s similar to how sputnik was a demonstration of icbm capability. Iran can launch a first generation ICBM right now. Pointless if they use a conventional payload (too small payload to be cost effective militarily) and a non manoeuvrable warhead (would just be intercepted) and so these aren’t used militarily but essentially everyone acting shocked they can hit 4000km range was not paying attention.

I think one of the problems we are having right now is that we have leaders who actively believed the downplaying of Irans military capabilities. It’s one thing for the common civilian to think the enemies missiles are made of cardboard and tanks of paper but it’s another when the leader of a nation believes it. Now here we are with a war that’s stalemated and no way out.

Noor 2 (satellite) - Wikipedia

> a non manoeuvrable warhead (would just be intercepted)

Intercepted? In the UK, by what? London has no missile defence system that I am aware of.

A missile would need to fly all the way over Europe before reaching London. It would be noticed, jets would be scrambled and it would be shot. Just like what happened here.
These were ballistic missiles. They are only vulnerable during the terminal phase, when they are moving at hypersonic speeds. Standard fighter jets aren't going to do it. It would take ground based THAAD, Patriot, or ship based Aegis systems. London might want to budget for that.
or take (less) of these https://en.wikipedia.org/wiki/SAMP/T 8^)
SAMP/T - Wikipedia

They can fly well above any commercial and military aircraft.
Probably by the Sea Viper system from a destroyer parked in the Dover Strait. Now, the UK probably doesn't have enough interceptors or destroyers carrying them to be confident they'll be able to stop a proper all out attack, but that seems to be a common problem with every Western country right now with a peacetime military budget in an increasingly unpeaceful time.
Sea Viper can defend against short / medium-range BMs impacting in its vicinity, not IRBMs passing overhead in mid-course to a distant target.

> is that we have leaders who actively believed the downplaying of Irans military capabilities

We've been hinting about these capabilities for decades [0]. A lot of what is being brought up now is stuff a number of us touched on during the Obama years.

None of this is really hidden either - it would be brought up in think tanks and even undergrad classes if you attended a target program.

Civilian leaders have always had a hands-off approach to Defense and NatSec policy - once you show them how close to a polycrisis everything is they quickly defer responsibility. It's actually pretty similar to working in a corporate environment - it's all about managing upwards.

[0] - https://www.nytimes.com/2010/11/29/world/middleeast/29missil...

WikiLeaks Archive — Iran Armed by North Korea

American intelligence assessments say that Iran has obtained advanced missiles from North Korea based on a Russian design that are much more powerful than its other missiles.

The New York Times

> it's all about managing upwards

That might not work with the current administration. Which probably a/the problem.

It still does/is. Most of what I'm seeing with Iran is similar to what was discussed back in the early 2010s.

There hasn't been significant churn in the NatSec space aside from political appointees, and core policymakers like Doshi, Maestro, Allison, Colby, and even Hill have worked with administrations irrespective of party affiliation.

The outcomes is very different from 2010, how so?

> The outcomes is very different from 2010

Not really. What we're seeing today is similar to what was being discussed in 2010 [0]. Heck, this failed missile attempt confirms capabilities that were being discussed in 2010 [1].

[0] - https://www.aljazeera.com/news/2010/4/22/us-iran-strike-stil...

[1] - https://www.nytimes.com/2010/11/29/world/middleeast/29missil...

US: Iran strike ‘still an option’

Officials say military intervention a “last resort” against Iran’s nuclear programme.

Al Jazeera
The downplaying of Iran’s capabilities is a weird kind of racism IMHO. In the modern view, Iranians have been categorized as “brown” so people lump them together with Somalians and Afghans. But Iran is a technologically and politically sophisticated country. In terms of the Civ tech tree, it’s higher than any middle eastern country except Israel.

>Iranians have been categorized as “brown” so people lump them together with Somalians and Afghans.

Even from a racist perspective that's completely wrong; Iranians are white, the name "Iran" literally means "Land of the Aryans".

> The downplaying of Iran’s capabilities is a weird kind of racism IMHO.

Agreed, but it’s not at all surprising to me. Propaganda means that people will project fictitious motives and capabilities on their opponents, even if they are internally inconsistent (e.g. Iran must be attacked because they will threaten the USA mainland vs Iran’s missiles are very inaccurate and barely hit anything).

> I think one of the problems we are having right now is that we have leaders who actively believed the downplaying of Irans military capabilities.

Was that the problem?

The US handling of the situation seems the elephant in the room.

> we have leaders who actively believed the downplaying of Irans military capabilities

Iran has done precisely nothing unexpected in the entire course of this war. Closing Hormuz has been mooted since the 70s. And its IRBM stockpile has been known. This is more a case of something between political leaders and possibly the media being ignorant of even open-source intelligence.

I thought the US president said they didn't expect a number of things that happened.

It also expected a quick intervention, 2 weeks max.

> the US president…

The President is a political leader.

To be fair Trump admins most optimistic timeline was “4-6 weeks maybe longer”. We’re at the end of week 3.

I recall it was 12 days, or 4 weeks. Perhaps I missed an early prediction from the state that it could be 4 to 6 weeks.

The 12 days, and 2 weeks is what I recall most. But reality is what we want to see and hear. Some would say we are at week 4. Some that we are ending week 3.

Reason would be to accept we are taken for fools anyway. Or worse, run by fools.

> * This seems to reveal previously-unknown range of Iranian ballistic missiles and, if true, could touch basically all of Europe?

The Wikipedia article has said they had missiles that can range 4300km since 2019 (as in the article was updated in 2019) https://en.wikipedia.org/w/index.php?title=Shahab-5&oldid=91... . If Wikipedia has known about it for 7 years, surely military planners were already aware.

Shahab-5 - Wikipedia

US intelligence had assessed that this was possible a long time ago. It was one of the motivations behind the installation of long-range missile defense capabilities in Poland and Czechia in the late 2000s. Obama killed that program to appease Russia.

Of course, there is a significant gap between Iran possessing the capability, having the temperament to use it, and actually doing so.

> It was one of the motivations behind the installation of long-range missile defense capabilities in Poland and Czechia in the late 2000s. Obama killed that program to appease Russia

This was sidestepped by allowing the Poland-SK defense partnership to kick off in 2013 [0] which was further entrenched in 2022 [1], and itself acted as a message against North Korea for acting in a similar manner with Iran [2]

[0] - https://www.president.pl/archives/bronislaw-komorowski/news/...

[1] - https://www.irsem.fr/storage/file_manager_files/2025/03/nr-i...

[2] - https://www.nytimes.com/2010/11/29/world/middleeast/29missil...

It's a message toward the west don't think you're safe further away. Iran is pushing the west out of west Asia. Time will tell what USIS and EU will do to combat this.

> Time will tell what USIS and EU will do to combat this.

Diplomacy was working fine, per high-ranking diplomats: https://www.economist.com/by-invitation/2026/03/18/americas-...

America’s friends must help extricate it from an unlawful war

Badr Albusaidi argues that America and Iran's national interests lie in ending hostilities and resuming nuclear negotiations through regional dialogue.

The Economist
[flagged]
Yes, war is bad. Unless you're from the Complex. No big insight here, Mr. Rayiner.
Anyone thinking they can talk their way into controlling Iran, a fundamentalist fanatic country with a very loud and visible doctrine literally calling to destroy the west, is delusional. The western "avoid conflict at all cost" approach is extremely detrimental.

> Anyone thinking they can talk their way into controlling Iran, a fundamentalist fanatic country with a very loud and visible doctrine literally calling to destroy the west, is delusional

Yeah, what's it about peoples of the third world that they're always fanatical, that they're always out to destroy the first world... https://theconversation.com/orientalism-edward-saids-groundb... / https://archive.vn/HoEk5

Orientalism: Edward Said’s groundbreaking book explained

Edward Said’s seminal 1978 book, Orientalism, explores how often racist or romanticised stereotypes create a worldview that justifies Western colonialism and imperialism.

The Conversation

Once you simply kill all the leaders, there is no one left to negotiate with.

Iran is also oddly moderate from the region (beyond the whole death to America thing).

If US takes down their democracy and downs their domestic passenger jets, fight a proxy war with chemical weapons through Saddam Hussein that alone kills 20~30 thousand, no country is going to respond to that with flowers in their hair.

Loved your link, but I doubt it is going to change anyone who thinks Israel and US are doing the god's work here.

I don't think they had any reason to destroy us until trump decided to kick the hornet's nest. In fact they were quite reasonable and agreed to inspections of their nuclear programme which is also something Trump broke before, and now with his petty war.

I mean they hate Israel way more than us and they never attacked them either (until this war obviously). And regime change was already happening there slowly. They would have become more moderate, the public opinion inside Iran was more and more against them especially since what they did to the protesters.

This war was unnecessary and only cemented the regime's hold on their people by giving them an external enemy.

You are just uninformed.

Iran has sponsored, built and trained organizations all over the middle east so they could destroy Israel: Hamas, the Houthis in Yemen, Hezbollah in Lebanon and groups in Iraq are all proxies propped up by Iran.

Iran was the first to attack Israel, this happened in 2024 when Israel killed Nasrallah (Hezbollah) and Iran fired hundreds of ballistic missiles directly at Israel.

Iran hates the US way more than Israel, but Israel is closer so obviously they are directing their efforts according to what's plausible. Iran calls the US and Israel "the big satan" and "little satan" in almost all internal communication. Just a couple of weeks ago the entire Iranian parliament chanted "death to America" and "death to Israel" (you can see the videos online). Iran had US flags laid out on the floor of their facilities so that anyone going by will walk over the US flag.

Despite being very uncomfortable, the war is probably necessary because as seen by Iran's attack on Diego Garcia, they have way longer range than previously thought, they have a deposit or military grade uranium enough for 10-12 bombs, they were completely dishonest about their nuclear programs, and waiting until Iran had nukes meant you couldn't ever stop them. You'd have another North Korea but ten times worse, as the Iranian regime is truly a fundamentalist insane leadership. Trump may be unhinged but he's right about Iran using nukes if they had them.

Well, if US takes down their democracy and downs their domestic passenger jets, ... | Hacker News

> Iran, a fundamentalist fanatic country

United States, a fundamentalist fanatic country: https://bsky.app/profile/gregsargent.bsky.social/post/3mhgag...

Greg Sargent (@gregsargent.bsky.social)

Radical extremist cleric issues angry new fatwa --> [contains quote post or other embedded content]

Bluesky Social
Well, if US takes down their democracy and downs their domestic passenger jets, ... | Hacker News

Mandy Rice-Davies Applies.
I think the article downplays the element that the attack probably achieved its goal which was not to actually hit something at Diego Garcia, but to show that thing 2500 miles from Iran are potentially targetable by Iran. That starts conversations like the one here and in other fora about whether or not Iran would limit themselves to military targets (Russia doesn't as an example) and if not how could Europe and its East Asian allies protect literally everything with their finite supply of defensive units.

> to show that thing 2500 miles from Iran are potentially targetable

Iran has had IRBMs for some time. Demonstration doesn’t hurt. But demonstrating failure doesn’t particularly help either.

The thing is Iran has long promised their max range was 2k Km and so defensive only. This shows that was a lie.
All countries publicly understate the max range that their missiles can go. This is generally understood in the defense community.
What's the point? Naively one would think it is the opposite.
To surprise your ennemy. I've heard recently that they tune military hardware differently in peace than in war, e.g. radar signals frequency.
I heard the same about the number and location of French nuclear war heads, or their exact red lines. If you tell the enemy your limit they're gonna sit exactly on it.

> whether or not Iran would limit themselves to military targets

This question has long been answered

How is it? So far they seem to be trying to hit actual non-civilian targets. Missing with the rockets on intended targets is a different matter.

And yes, hitting offices with American financial institutions or hotels with American soldiers in them is fine.

Attacks on Israel clearly show that Iran - just like Russia - sees the civilian population as a legitimate target. Question of tactics remains, of course.
So just like US and Israel?

Unfortunately this is more interesting than a failed Diego Garcia attack — the late Ayatollah had a self-imposed range limit on the strikes or tests they would carry out. By using IRBMs in this fashion, it’s clear the new regime no longer feels bound by that restriction..

Which is notable since it’s about the same distance from Southern Iran to Diego Garcia (3,800km) as it is from Northern Iran to London.

Excellent point. Maybe it's the goal of this attack to demonstrate this capability.

They had a religious ruling on the range, and they also had a religious ruling on "not creating an atomic bomb."

The question of whether the world can assume its security on some religious rulings of some Ayatollas is still standing, as these rulings can apparently be changed or bypassed.

> The question of whether the world can assume its security on some religious rulings of some Ayatollas

I don't think much of the world has processed that Iran's ostensible lack of nuclear weapons is purely a matter of will and not capability.

Maybe don't murder the religious leader that made the rulings.

Can anyone blame them for considering developing nuclear weapons for real now? I can't.

After being caught developing nuclear weapons for real numerous times, now it is really for real?
Were they caught by the same people who found WMDs in Iraq by any chance?

the IAEA, presumably you trust UN agencies?

in any case, these are the mythical WMDs found in Iraq:

https://www.nytimes.com/interactive/2014/12/03/world/middlee...

https://www.nytimes.com/2015/02/16/world/cia-is-said-to-have...

Chemical Weapons in Iraq: Revealing the Pentagon’s Long-Held Secrets

The Times investigated secret casualties of Iraq’s abandoned chemical weapons and the Pentagon’s response, including follow-up care for those exposed.

The New York Times