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by softwaredoug·3mo ago·view on hn ↗
Increased defense spending actually makes the US less, not more, safe. Everyone we're going to fight is prepared for an asymmetric, cheap war. We're vulnerable in how much they can make us spend to wage that war. A million dollar patriot missile to shoot down a cheap drone, etc.
8 comments
I agree to a point.

But also look at Ukraine. They are punching well above their weight with asymmetrical tactics, but Russia is not defeated.

Drones and other autonomous, cheap weaponry changes a lot. Smaller states and non-state actors can inflict much more serious and expensive damage now more than ever.

Large weapons still matter though. If we ever were to enter an existential battle you would quickly see how big, expensive systems can still be advantageous. I am sure people will take issue with this comment but look at the relative restraint of Russia in Ukraine or the US in Iran vs, say, WWII. Modern morality prevents such scale and tactics until it does not. Then suddenly what matters are big weapons and the huge supply chains powering a war machine.

Both the US and Russia are also pivoting heavily towards drones, and they've been developing them for decades. Yes we have big, expensive weapons programs but we also have a lot of stuff ready or soon to be ready which is much, much cheaper.

> I am sure people will take issue with this comment but look at the relative restraint of Russia in Ukraine [...] vs, say, WWII.

They have been bombing civilian infrastructure, abducting children, torturing and executing civilians and POWs, executing deserters or wannabe deserters the entire fucking Ukraine war. See https://en.wikipedia.org/wiki/War_crimes_in_the_Russo-Ukrain...

Restraint, my unbleached asshole.

Civilian to military casualty ratio is 1:20 for Russia-Ukraine war and 2:1 for WWII. The difference is huge. Whether this is actual restraint I have no knowledge but if it quacks like a duck ...
The uncomfortable truth is that is absolutely restraint.

For the areas of Ukraine Russia controls, the Russians have distributed food and in some cases identifying documents.

From what I can tell Russia’s goal is to assimilate, not annihilation.

After all is said and done, I suspect some Ukrainians will become Russian citizens or be granted the opportunity to leave.

Or the war will continue forever

No one is fire-bombing cities yet, despite Ukraine pulling a WWII Japan and distributing weapons production amongst residences.
Russia is keeping their expensive equipment in the back since years now because they're afraid to lose it. They would be fire bombing cities if they could. Russia already used white phosphorous in this war. The only reason they're not killing more civilians with missiles and drones is because they can't build more of them.
> No one is fire-bombing cities yet

That was mainly the Americans, British, and the Germans, not the USSR.

Also, what makes you think they could in this war? Do you think they can send bombers over Ukranian cities and drop a shitton of ordnance?

The Russians aren't deploying nukes; that is the only actual 'restraint' to date.

Russia has been attacking Ukrainian cities with missiles and drones since the beginning of the conflict. But Russia simply lacks the capacity to fire-bomb cities on a large scale. They only have a handful of operational heavy bombers left and no real ability to manufacture more so they're unwilling to risk them.
Yep, apparently Ukraine still cannot affect fuel production in Russia to any significant point. Drones with less than 100 kg of explosives do not do particularly significant damage. One really need to deliver like a ton or more of explosives and for that one needs bombers that can penetrate air defenses or very expensive stealth cruise missiles or big ballistic missiles.
Of course it has had a significant impact. The reason Russia has repeatedly turned off fuel exports every couple of months for the past couple of years despite high global prices because Ukraine keeps disabling enough of their refining capability to cause shortages.
Hah. Ukraine has cut Russian petroleum production 40%...
And they've only recently cranked things up, seeming having given up on Trump who wanted restraint there.
Ukraine dramatically reduced Russian fuel export revenue, and the sanctions did so even more.

It was really coming to the point of urgent existential threat to the Putin regime this spring, before Trump and Netanyahu bailed him out, first by doubling the global oil price and then by relaxing sanctions.

And Ukraine's drone / cruise missile portfolio includes things like the Flamingo, more than twice the payload and range of a Tomahawk.

If Ukraine had access to Tomahawks, Russian oil industry would not exist at this point. With drones after two and halve years of attacks with multiple hits at the same refineries Ukraine reduced Russian fuel production at best by 20%.

Flamingo is still mostly vaporware. For precise strikes against Russian factories Ukraine uses either Storm Shadow or domestic Neptun.

But that just shows again that drones are not particularly effective against most industrial targets and even against oil installations the damage is not lasting.

Or consider how US was able to destroy the bridge in Iran yet Crimea bridge and bridges in Rostov that are absolutely vital to Russian war logistics still stands.

Why do you think this bridge is vital when there is a land bridge (Kherson) with multiple rail links all in Russian controlled territory containing the entry and exit points of the bridge?
That bridge is A) incredibly expensive and something a postwar Ukraine would prefer to exist for economic reasons, B) extremely overbuilt in certain ways, and C) not strictly required if Russia can keep rail going on the landbridge.

It might be in play if the land bridge fell.

It would be almost trivial in terms of range to make it a target of any number of strike munitions. If you can hit the Baltic ports or factories in the Urals...

As for drones vs cruise missiles - at this point every missile strike is associated with drone accompaniment, it's part of the counter SHORAD proposition.

I’m surprised that they are not dropping thermite on oil refineries. Most things there will burn if hit enough.
You think “morality” is what’s preventing the US or Russia to drop atomic bombs on their smaller targets?
> Modern morality prevents such scale and tactics until it does not.

In the sense that the tide of geopolitics means that if someone tried that they'd mark themselves as a defector in the current scheme of morality and would stand to lose a lot when the rest of Europe inevitably treats that as an example of how they are about to be treated.

Shot exchange is indeed a problem, but it's far more complex than this makes it sound. The opportunity cost of _not_ shooting down the drone isn't the cost of the drone, it's the cost of whatever it's going to destroy if you don't shoot it down.

Sometimes it makes sense to use a million dollar missile to destroy a $5,000 drone, if that drone would otherwise destroy an even more expensive air defense radar or energy production facility. This says nothing about the cost and value of the lives that might be lost in an enemy strike.

We would not be safer if the enemy had cheap drones and we had no weapons capable of fighting back.

The main problem is that air defense interception is incredibly challenging and expensive primarily because a mid-course defensive interceptor needs considerably greater capabilities than the weapon it is intercepting, because it needs to catch up to the incoming missile or drone mid-flight.

Sure, this can lead to massive overkill problems. Yes, the US should invest more in the low end of the high/low mix. But no, this does not mean there's no place for the high end, or that they should never be used to destroy lower end targets if that's all that is available.

A more interesting challenge, if you ask me, is in the naval domain. Imagine a capital ship has two options for defending against incoming threats - either fire an expensive and limited stock interceptor missile with a 99% kill chance, or wait until the threat is inside the range of a cheap cannon or laser system with a 95% kill chance. There's a real command level tradeoff to be made here. If you shoot every drone with interceptors, you lose shot exchange badly, and you just run out of interceptors. But if you let every target through into the engagement range of your close range systems, you run the risk that one makes it through to your ship, potentially causing damage and casualties.

The future of war is going to be wild one way or the other.

I disagree on air defense inherently being very costly.

Old school was guns. Price per round was cheap. But the expensive missile kills the platform holding the cheap gun, you have to go with missiles. But the drone war is a different beast entirely. Drones can't shoot back. Thus the answer is guns. How well will their light drones fare against a Cessna armed with an automatic shotgun? How would the jet drones fare against a WWII warbird?

Lots of cheap, mobile guns. No meaningful self defense but doctrine is to always depart after shooting.

The naval one is much harder because you're not free to disperse your ship into many pieces. But, still, consider your cannon. Let's step down a bit, cheaper cannon with a 90% kill rate--but you put several of them.

There are videos on the internet of drones being shot down with an assault rifle out of a 50 year old training plane, 1914 style.
IMO, modern sensors paired with robot controlled guns are one of the most promising hard kill solutions for drone combat. Gepard and the newer Skyranger 30 have proven themselves against low-spec threats in Ukraine. C-RAM (aka Land Phalanx Weapon System) is an already deployed system that is very effective against even higher spec threats like missiles.

Of course, there are always tradeoffs. Even the best guns have much shorter ranges than air defense missiles, and that means you need more systems to provide the same area coverage. As you mentioned, the guns themselves (and the sensors and networks feeding them) become a target.

As usual though, likely the solution will require a mix of capabilities across the spectrum, working to cover each others' weaknesses. Nothing is fool-proof, but all can force costly adaptations. Take EW for example. Nothing is cheaper than jamming out the drone's comms or nav. This forces adaptation to autonomy or fiber optic drones, which have their own costs, supply pinch points (Russia now consumes somewhere around 10% of the world's fiber, for example), and tradeoffs.

This is nothing new - layered air defense has been around a long time. The new thing is the explosion of cheap, low-spec threats forcing development of a cheap and sustainable answer to them.

Nets, EW, beam weapons, gun systems, interceptor drones, AMRAAM, Patriot, SAMP/T, etc etc... all fill an important role in targeting different threats.

>Sometimes it makes sense to use a million dollar missile to destroy a $5,000 drone, if that drone would otherwise destroy an even more expensive air defense radar or energy production facility. "

If that $5000 drone was alone then sure. However if they launch 200 drones (money equivalent of one missile) you'd be looking at totally different picture. Also they usually launch combo. Few missiles and whole bunch of drones. even worse

To be fair the US is making steps into this realm and it's definitely a known issue. Their Shahed derivative, laser weapons becoming more ubiquitous. I'm surprised how many drones countries are starting to manufacture. e.g the UK delivered 150k drones to Ukraine recently, based on the current state of the UK armed forces that kind of surprised me and definitely shows a change in ethos on how modern first world militaries will wage war in the future.
There’s credible evidence that the Shahed is itself a derivative of a late 20th century German drone designed as a loitering anti-radar munition.
Which has roots that can be traced to the V-1.
Also seems that having a very capable military that lets you project power around the world also invites that power to be used. See for instance the Iran war. Quite pointless by all accounts and wouldn't have happened if the US didn't have aircraft carriers to send around the world.

So perhaps thriftiness in defense spending would also invite a prioritization in actual defensive capabilities?

I think the likely result would be more war. It wouldn't be with america, but without anerica providing protection to its allies in the region, the various countries in the region would probably be emboldened to fight it out themselves (im assuming in this scenario that russia and other great powers are also incapable of force projection. Obviously russia is busy right now, but historically they were knee deep in the middle east and much of us involvement now is a legacy of the cold war)
Even in a hypothetical situation where the USA had no aircraft carriers our military probably would have conducted some raids to delay Iran building nuclear weapons. The initial strikes against nuclear facilities were done with B-2 bombers launched from Missouri.
Not to mention US air bases dotted all over the Middle East, the near East, Europe, the Indian Ocean, the Pacific Ocean the Arctic…
Iran wouldn't have started to work in nuclear weapons if Bush didn't credibly threaten to invade them.

Hell, Iran didn't actually work into building them before Trump decided to attack them.

The threat that President Bush issued in 2002 was due to Iran being a state sponsor of terrorist groups, which was true then and is still true today. Historians can argue over whether that threat was a good idea at the time but it's too late to retract it now. We have to deal with the actual situation as it obtains today.

As for what Iran's leadership decided and when, we really have very little visibility into that so don't believe anything you hear. We're not even certain which faction is really in control of nuclear weapons policy. (This isn't an endorsement of the recent attacks.)

This is laughably false. The leadership in Tehran is smart, and they know that nukes are the most assured path to the regime's self-preservation. (see: North Korea). They've been trying to build nukes since the 80s.
> Also seems that having a very capable military that lets you project power around the world also invites that power to be used.

I assure you that is a much better problem than the alternative.

Thanks for the assurance!
> A million dollar patriot missile to shoot down a cheap drone...

I guess it is a good thing then that this isn't something they actually do.

They use cheap weapons to shoot down cheap drones. Their primary anti-drone missile was developed in the 2010s and costs less than a Shahed.

Yet these cheap and effective weapons failed to protect high value targets, esp. radars.
Yes a 99% success rate versus like 600 incoming still means some of them will get through.

Which is the same reason no level of military power is going to keep the Strait of Hormuz open (or at least, no level beyond a truly absurd one and even then - see the Kerch bridge in Crimea).

Iran's stuff is short range.

But Orange Dementia didn't even think about that.

That's a question of deployment, not capability. They've been used widely in the Middle East against drones since the 2010s with considerable success.
Which system are you talking about?
APKWS.

The US took the old Vietnam-era unguided rocket pods (Hydra 70), of which they produce hundreds of thousands every year, and slapped a dirt-cheap guidance kit to the front of each rocket. Supposedly 90-95% effective. A bunch of countries are developing their own clones of the concept.

A single F-16 can carry 42 missiles. They've been rapidly expanding the number of platforms they can attach these to.

> A million dollar patriot missile to shoot down a cheap drone, etc.

Except this is more propaganda than truth. In general america does not use patriots to shoot down drones except in exceptional circumstances.

Not that the ecconomics of missile defense isnt a problem. It can be. But some of it has been highly exagerated.

The US just blew through a large percentage of its PAC-3/PAC-2 inventory fighting Iran. Other than Patriot, the US doesn't really have much GBAD anymore. A few Avenger systems, some Stinger MANPADs, etc. It's either Patriot or THAAD; and hopefully they're not dumb enough to be using THAAD against drones.

I'm sure they burned through quite a few AMRAAM and Sidewinders doing intercepts as well. Patriot is much more expensive than $1M (try $4M), Stinger is around 250K depending on who the customer is ($750K if you're non-US). AMRAAM is over $1M, Sidewinders $500K.

Even APKWS is $40k, and Shaheed prices are around $30k? So even that low cost option is losing.

There are many different flavors of APKWS, that is the most expensive type. There is real tension between reducing unit costs by maximally leveraging whatever systems they are attached to instead of putting everything in the guidance package and the overhead cost of the customization that entails.

They've been experimenting with variants for many years. There is some belief that they may be able to get unit costs down to $5k for some common variants. Everyone believes $10k is achievable.

> Increased defense spending actually makes the US less, not more, safe.

It just makes us spend more money on defense, which is the entire point.

The industry obviously wants more and more profits.

They are never going to recommend getting rid of $200m F22s and replacing them with 30 $300k drones that would be more effective and cost 5% as much money.

That's 5% as much profit for them. They're not interested.

They are interested in profits, not national security.

And as you pointed out, they'd prefer a LESS secure world that inherently demands more money going to security.

You could spend more on security to actually be more secure. It's just that no one with any power is interested in that world.

They're only interested in making more money.

There are so many companies working on this now (cheap anti-drone tech, cheap cruise missiles, cheap missile interceptors), what you're saying is kind of moot.