Israel and the US are fighting Iran together, but they don’t want the same end

A longer war risks pushing up oil prices, especially with the Strait of Hormuz becoming unstable.

• Israel aims for long-term weakening of Iran's regime.
• US seeks quick results, avoiding a prolonged Middle East war.
• Israel braces for long conflict; US may seek ceasefire soon.

Did our AI summary help?

The US and Israel went into this war in lockstep. The targets were clear. Hit Iran’s missiles, drones, air defences and anything that lets it threaten the region. Slow down its nuclear programme. Make sure it comes out weaker. So far, that part has worked. Iran has taken significant hits.

But three weeks in, the real question isn’t what they’ve done. It’s what they want this to lead to. And that’s where things start to split, CNN reported.

Israel is thinking long-term, even beyond the war

For Israel, this isn’t just about reducing risk for now. It’s about changing the equation with Iran for good.

There is a clear sense that this might be a rare window. Keep the pressure on, weaken the system enough, and maybe the regime itself starts to crack. That idea is not being said too loudly in official terms, but it sits in the background of how Israel is approaching this.

From their point of view, this is an enemy that has openly threatened them fordecades. If there is even a small chance to fundamentally weaken that threat, it is worth pushing further.

The US wants results, not another open-ended war

The US is looking at the same battlefield, but through a very different lens. There was some early talk from President Donald Trump about big outcomes, even hints of regime change. That has clearly been toned down. The focus now looks narrower. Do enough damage, claim success, and avoid getting pulled into something that drags on.

That caution is not just strategic, it’s political. There is very little appetite in the US for another long war in the Middle East, especially one without a clear end.

The part Israel doesn’t have to worry about

The US is also carrying baggage that Israel doesn’t.

A longer war risks pushing up oil prices, especially with the Strait of Hormuz becoming unstable. That hits global markets and domestic inflation. It also ties up military resources that the US needs elsewhere, whether that’s Europe or the Indo-Pacific.

There’s also the wider fallout the US has to think about. A longer war can push oil prices up, which in turn helps countries like Russia earn more. It can also pull global attention and resources away from other areas the US cares about.

Israel isn’t looking at it from that angle. Its focus is much more immediate — what reduces the threat it faces right now.

They’re not even on the same clock

You can see this difference most clearly in how long each side is willing to stay in the fight. Israel looks prepared for a longer campaign if it keeps weakening Iran. The US could decide much earlier that it has done enough. It can already point to significant damage inflicted on Iran’s military capabilities.

At some point, Trump may simply say that the objectives have been met and try to move towards a ceasefire. The problem is, wars don’t end just because one side says they’re done. Iran may keep hitting back until it feels it has secured acceptable terms.

There’s another war running in parallel

For Israel, Iran is only part of the picture. Hezbollah in Lebanon is also active, and this moment may be seen as an opportunity to deal with that threat more aggressively. Israel could push harder there, using the current situation to try and reshape the balance on that front too.

For the US, that is a secondary concern at best.

What happens if Washington pulls the plug

Despite the coordination, this is not a war Israel can run the same way without the US. If Washington decides to step back or push for a ceasefire, Israel will have to adjust. It may not stop completely, but it would likely move to a more limited pattern of strikes, hitting targets when needed rather than staying in sustained combat.

There is also a political reality. If Trump decides the war is over, Israel is unlikely toopenly defy that.

The early assumption that didn’t hold

Both sides seem to have believed, at least initially, that a strong opening could shake Iran quickly. Target the leadership, hit key assets, and the system might start to wobble from within. That hasn’t really happened.

Even after heavy strikes, Iran still has ways to respond. The disruption in the Strait of Hormuz is a reminder that it can still raise the cost of this war and stretch it out.

So what’s really going on here

On the surface, this is a tightly coordinated campaign. Underneath, it’s two countries with different definitions of success. Israel is willing to go further if it sees a chance to permanently weaken its biggest threat.

The US is already thinking about how and when to step away. They are fighting the same war. They’re just not aiming for the same ending.