That's naive and simplistic. Your counterparty isn't going to agree to a deal if they get nothing in return. "Stop doing nuclear stuff or else" isn't a deal, it's a demand.

And this fiasco proves that the US can't really do enough militarily if Iran just decides they don't want to abide by a deal/demand. Sure, this war was costly and painful for Iran, but they're coming out of it with better terms than they had before the war.

> but they're coming out of it with better terms than they had before the war.

That is precisely the problem. We have not done enough militarily when we clearly had the upper hand in the first few weeks of the war. We sank their boats, destroyed their planes and anti-aircraft batteries and could freely fly all over the country destroying targets at will. The Trump administration has clearly failed to finish what it started and has left Israel and the GCC countries in a worst position than if it hadn't done anything at all. The "deal" is a pathetic outcome.

We should return to combat operations and finish what we started. This is not about invading the country. It is about neutering the regime so that it can't threaten the region and international waterways. The most important aspect of this is bleeding it dry economically by destroying their ability to export oil. Track and sink the "shadow fleet" anywhere in the world, carpet bomb oil production facilities, and destroy bridges and railways that allow trade by land. Make it clear that any damages caused to neighboring countries will be paid for by Iran using their frozen assets.