What if the U.S. sent half of its THAAD and SM-3 interceptors to the Middle East? How long could they last under June-level firing rates?

Let’s break it down 🧵

1. THAAD

Total U.S. inventory (post-June 2025) ≈ 384–434

50% forward (BIG assumption) → ~190–215 missiles deployed

2 batteries forward → 96 ready missiles (loaded on 12 launchers)

Remaining ~94–119 missiles = reload stock

2. THAAD daily firing: June tempo = 8–12/day

Ready rounds (96):
8/day → 12 days
12/day → 8 days

Reloads (~94–119):
8/day → 12–15 days
12/day → 8–10 days

Total in-theater endurance: ~2.5–3.5 weeks (16–24 days)

3. SM-3
Total inventory ≈ 414 after June use

50% forward → ~207 missiles

June-level firing tempo ~6–7/day

Forward endurance:

6/day → 207 ÷ 6 ≈ 34 days (~5 weeks)

7/day → 207 ÷ 7 ≈ 30 days (~4 weeks)

4. Forward-deployed THAAD & SM-3 stockpiles are likely smaller than 50% of total inventory, to leave missiles for the Indo-Pacific & other theaters.

THAAD: ~9–11 days if firing rises to ~20/day (roughly double June tempo)

SM-3: ~2 weeks if firing rises to ~15/day

5. Key point: Even a generous forward deployment could be rapidly depleted in a high-intensity conflict.

Forward stockpiles aren’t limitless: THAAD ~10 days, SM-3 ~2 weeks at high-tempo rates. Sustained attacks would stress U.S. missile defense quickly.

• Kelly Griego, Senior Fellow at Stimson Centre, Professor at Georgetown University’s Center for Security Studies

Interesting data points

via @Slavyangrad

@easternparty

—❗️🇮🇷 Iran's military analyst on IRIB:

'As you have observed with your own eyes today, the martyrdom of commanders no longer has any impact on the implementation and coordination of military operations along the multiple different fronts.

These operations, both offensive and defensive in nature, will continue to take place along a pre-determined trajectory and towards an ever-escalating pace.

The Armed Forces of the Islamic Republic are well-prepared for this war, however long it may take.'

@Middle_East_Spectator

🇮🇷 For the moment, Iranians seem to continue with their attacks unbothered. What is incomprehensible is the military's inability to create a robust security protocol for sensitive persons within the command chain. This looks very bad.

I'm sorry, but after Soleimani, after Nasrallah, after Khamenei I will believe it only when I see it. It is inexplicable how bad the preparation for attacks on behalf of Iran is. I truly hope that their personell infrastructure is setup in a way that allows for sustained stability under war, but I will believe this only after I've seen it. We all can recall how Syria's propaganda accounts were posting victory news until a few minutes before the rebels arrived at Damascus. Hopefully it will not be the same here. It's not enough to target empty military bases to talk about "hellish days" and the like. Only when Netanyahu and Trump begin sweating and are targeted deterrence will have been reestablished.

By the way: How dumb is it to call for the evacuation of military facilities? If you're at war, you want to inflict maximum damage to the enemy, which simply means to try to kill as many as possible of them. The fact that those groups are calling for the evacuation of the enemies facilities shows that something is completely off.

🇮🇷🇶🇦 Burning facility in Doha, Qatar. No exact location known at the moment, but the firefighting trucks are Qatari.

📰 facebook.com (Qatari Ministry of Interior)

🇮🇷 At this point, the question is whether they have the capability to do so. Looking at the performance of the Iranian military industrial complex in the current conflict, that's highly doubtful.

@easternparty

🇮🇷🇶🇦 Ongoing attacks on Bahrain with Shaheed drones. Apparently no effective air defences.

@easternparty

🇮🇷🇮🇶🇺🇸 Impacts at the US base in Erbil, Iraq.

@easternparty

🇮🇷🇺🇸 An AP article claims that the CIA tracked Khamenei for months before the strike that killed him on February 28th 2026.

📰 ynetnews.com

@easternparty

So much for Israeli superiority. What would they be without American support? A nice appetizer for a country like Iran maybe.

@easternparty

🇮🇷🇷🇺 Iran doing what Russia fears since years to do and they don't even have nuclear weapons. Sad.

@easternparty

Cluster warhead.

I was already wondering why they don't use cluster ammunition. Nice.

🇮🇷🇺🇸 US Senator Tim Kaine:

"I am a member of two committees that give me access to a large amount of classified information. There was no direct threat from Iran to the US that would justify sending our sons and daughters into another war in the Middle East."

🔗

Join us | @MyLordBebo

Do Britain, Germany and France threaten Iran with 'military defensive measures' because everything is going according to plan?

By the way: what is Germany going to use? They barely can equip their soldiers with their necessary military items.

@easternparty

🇮🇷🇮🇱🇺🇸 Very heavy bombardments reported in Tehran.

🔗

Join us | @MyLordBebo

🇮🇷 New images of the IRGC drone tunnel and firing towards US bases.

Isn't it funny how transatlanticist mouthpiece 'Der Spiegel' hails Israel's collective memory? Yet, when Russia invoked its collective memory and history in the Russian borderlands - Ukraine being nothing more than the slavic word for it - they ridicule them?

📰 spiegel.de

@easternparty