History As It Happens – Bonus Ep! Misunderstanding Iran

Host: Martin Di Caro
Guest: Vali Nasr, Professor of International Affairs, Johns Hopkins SAIS
Date: March 18, 2026

Overview

In this bonus episode, Martin Di Caro discusses the miscalculations and misperceptions that led to the ongoing, escalating war with Iran, now in its third week. He is joined by Vali Nasr, a renowned expert on Iran, to dissect the misunderstandings within the Trump administration regarding the structure, resilience, and decision-making of the Iranian regime. The conversation exposes how these flawed assumptions resulted in severe unintended consequences and destabilized the Gulf region.

Key Discussion Points & Insights

1. Fundamental Misunderstandings of the Iranian Regime

Timestamps: 00:00 – 01:46

• The U.S. administration significantly underestimated the depth and resilience of the Iranian system, presuming quick regime change or collapse following a leadership decapitation.
• Ongoing Israeli assassinations, including high-ranking officials, have failed to topple the regime; instead, Iran's leadership seems more entrenched.

Quote:
“Neither the president nor his most important advisors really understood how the Iranian regime works, how it functions day to day. The layers of decision making, the nodes of power that have enabled it to survive three weeks of incessant bombing and assassination.”
— Martin Di Caro (01:04)

2. Strategic Surprise and Faulty Assumptions

Timestamps: 01:49 – 03:11

• Trump and his advisors assumed the regime would either change direction or collapse quickly post-June 2025 war.
• Iran’s ability to counterattack—by targeting energy supplies and U.S. bases—was unexpected for U.S. planners.

Quote:
“The Trump administration overestimated how weakened the Iranian state was... and assumed that if the Supreme Leader was removed, that the system either would quickly change direction or it would collapse very quickly.”
— Vali Nasr (02:02)

• There was a disconnect between Iran’s clearly stated intentions (to escalate in response to military action) and U.S. expectations. Even Gulf leaders had been forewarned by Iran itself.

Quote:
“When Iran had been very explicitly saying that it would do exactly that... it begged the question whether even the President was getting briefed with the right intelligence and information.”
— Vali Nasr (03:11)

3. Unintended Regional Consequences

Timestamps: 00:37, 03:28 – 04:03

• Unexpected missile attacks on Gulf states such as the UAE, Kuwait, and Bahrain, destabilizing regional energy markets and alliances.
• U.S. officials, including the President, were caught off guard by Iran’s regional response.

Quote:
“I heard they were sending missiles to UAE... There was no expert that would say that was going to happen.”
— President Trump (quoted by Di Caro, 00:37 & 03:01)

4. Ambiguity Over Iran’s True Strength

Timestamps: 03:28 – 04:03

• Confusion over Iran’s military and political strength pervaded war justifications: Iran’s capabilities were overhyped to justify war, yet its actual performance was underestimated.
• Losses suffered during Gaza war (Hezbollah, Syria) weakened Iran, but not to the extent anticipated.

5. Shifting War Rationales and Political Motivations

Timestamps: 04:03 – 06:38

• The official reasons for war shifted repeatedly, from urgent threats to historical grievances, reflecting a lack of coherent strategy.
• Israel may have aimed for regime collapse; Trump focused on regime transition and personal political legacy.

Quote:
“For President Trump, the objective was much more personal than national security, although then they tried to couch it in national security terms.”
— Vali Nasr (05:40)

• Iran has proven more resilient than expected, maintaining control of key assets like the Strait of Hormuz and continuing strikes against U.S. and Israeli targets.

Quote:
“Iran is clearly stronger than either Israel or the United States anticipated. ... Iran yet has not surrendered, has not collapsed, has not broken up. It keeps shooting missiles at Israel, drones and missiles at U.S. bases. And it is capable for now, to put a chokehold on the Strait of Hormuz and restrict the supply of oil...”
— Vali Nasr (06:10)

6. Divergent U.S. and Israeli Objectives

Timestamps: 06:38 – 07:14

• While both countries sought dramatic change in Iran, their endgames differed: Israel pressed for state collapse, while Trump sought a Venezuela-style regime transition.

Quote:
“The goal of President Trump, particularly the fact that he thought it would be a short war, was more regime transition, something like Venezuela. ... It's the same regime.”
— Vali Nasr (07:00)

Memorable Moments and Quotes

• “So there is a deeper problem here. Neither the president nor his most important advisors really understood how the Iranian regime works...”
  — Martin Di Caro (01:04)
• “When Iran had been very explicitly saying that it would do exactly that... it begged the question whether even the President was getting briefed with the right intelligence and information.”
  — Vali Nasr (03:11)
• “Iran yet has not surrendered, has not collapsed, has not broken up. It keeps shooting missiles at Israel, drones and missiles at U.S. bases.”
  — Vali Nasr (06:28)

Conclusion

This episode underscores how deep misperceptions of Iran’s structure and resilience have led to an unpredictable and devastating war with cascading consequences for the entire region. Vali Nasr’s expertise provides sobering analysis of the gaps between intent and reality in both U.S. and Israeli policies, highlighting the dangers of underestimating complex adversaries.