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18 Feb 2026·Source: The Indian Express
4 min
International RelationsEconomyPolity & GovernanceNEWS

Strait of Hormuz closure amid US-Iran nuclear talks

Iran briefly closed the Strait of Hormuz amidst ongoing nuclear talks.

Iran briefly closed the Strait of Hormuz, a vital waterway for global oil supplies, amidst ongoing nuclear talks with the United States in 2026. The closure, though brief, underscores the tensions surrounding the negotiations and the strategic importance of the strait, through which approximately 20% of the world's oil passes.

The US Navy closely monitored the situation, emphasizing the need for freedom of navigation. The incident occurred as discussions continue regarding Iran's nuclear program, with both sides seeking a resolution to longstanding disputes.

Key Facts

1.

Iran briefly closed the Strait of Hormuz.

2.

The closure occurred amidst nuclear talks between the US and Tehran.

3.

The Strait of Hormuz is a vital waterway for global oil supplies.

4.

Approximately 20% of the world's oil passes through the strait.

5.

The US Navy closely monitored the situation.

UPSC Exam Angles

1.

GS Paper II: International Relations - Effect of policies and politics of developed and developing countries on India's interests.

2.

GS Paper III: Infrastructure: Energy, Ports, Roads, Airports, Railways etc.

3.

Geopolitics of the Middle East and its impact on India's energy security.

4.

Potential for questions on maritime security and international law.

In Simple Words

The Strait of Hormuz is a super important sea route for oil. Imagine a road where almost all the oil from the Middle East has to pass through. If that road closes, even for a short time, it can cause problems with the world's oil supply.

India Angle

India imports a lot of its oil. If the Strait of Hormuz is closed, even briefly, the price of petrol and diesel in India could go up. This affects everyone from farmers to shopkeepers.

For Instance

Think of it like a highway toll. If the toll suddenly increases or the highway closes, the cost of transporting goods goes up, and eventually, the price of vegetables in your local market increases.

The stability of the Strait of Hormuz directly impacts the price you pay for fuel and other essential goods. Any disruption there can ripple through the global economy and affect your wallet.

Strait of Hormuz: Where global oil meets geopolitical risk.

Visual Insights

Strait of Hormuz: A Critical Chokepoint

Map showing the Strait of Hormuz and its importance for global oil supply. Approximately 20% of the world's oil passes through this strait.

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📍Strait of Hormuz📍Iran📍Oman
More Information

Background

The Strait of Hormuz is a narrow waterway connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea. Its strategic importance stems from the fact that a significant portion of the world's oil supply passes through it. Disruptions to navigation in the strait can have serious consequences for global energy markets and international security. The actions of Iran in the Strait of Hormuz are often linked to tensions with the United States and other countries over its nuclear program and regional policies. The Joint Comprehensive Plan of Action (JCPOA), also known as the Iran nuclear deal, was an agreement reached in 2015 between Iran and several world powers, including the United States. Under the JCPOA, Iran agreed to limit its nuclear program in exchange for relief from economic sanctions. However, the United States unilaterally withdrew from the JCPOA in 2018 and reimposed sanctions on Iran. Since then, efforts have been made to revive the agreement, but negotiations have been complex and faced numerous obstacles. Tensions in the Strait of Hormuz have often escalated during periods of heightened diplomatic friction related to the JCPOA. The United Nations Convention on the Law of the Sea (UNCLOS) establishes the legal framework for maritime activities, including navigation through international straits. UNCLOS recognizes the right of transit passage through straits used for international navigation, allowing ships and aircraft to pass through quickly and without impediment. However, coastal states bordering straits have the right to regulate navigation and take measures to ensure safety and prevent pollution. Disputes over the interpretation and application of UNCLOS provisions can arise in strategically important waterways like the Strait of Hormuz.

Latest Developments

In recent years, tensions in the Persian Gulf region have remained elevated due to various factors, including the ongoing negotiations over Iran's nuclear program and regional conflicts. Several incidents involving attacks on oil tankers and other vessels in the Strait of Hormuz have raised concerns about maritime security and freedom of navigation. These incidents have often been attributed to Iran or its proxies, although Iran has denied responsibility.

The United States has maintained a strong military presence in the Persian Gulf region to deter aggression and ensure the free flow of commerce. The US Navy regularly conducts patrols and exercises in the area, working with regional partners to enhance maritime security. The United States has also imposed sanctions on Iran in response to its nuclear program and support for militant groups. These sanctions have had a significant impact on Iran's economy and have contributed to tensions in the region.

Looking ahead, the future of the Strait of Hormuz and the Persian Gulf region remains uncertain. Efforts to revive the JCPOA and de-escalate tensions between Iran and the United States could help to improve stability and reduce the risk of conflict. However, significant challenges remain, and the region is likely to remain a hotspot for geopolitical competition and maritime security concerns.

Frequently Asked Questions

1. What is the Strait of Hormuz and why is it strategically important?

The Strait of Hormuz is a narrow waterway connecting the Persian Gulf to the Gulf of Oman and the Arabian Sea. Its strategic importance lies in the fact that approximately 20% of the world's oil supply passes through it, making it a vital chokepoint for global energy security.

2. What are the key facts to remember about the Strait of Hormuz closure for the UPSC Prelims exam?

For the UPSC Prelims, remember that Iran briefly closed the Strait of Hormuz in 2026 amidst nuclear talks with the US. Also, remember that approximately 20% of the world's oil passes through this strait. The US Navy monitored the situation.

3. How might the closure of the Strait of Hormuz impact common citizens?

Closure of the Strait of Hormuz can disrupt global oil supplies, leading to higher oil prices. This can increase the cost of transportation, goods, and services, impacting household budgets. It can also create economic uncertainty and potentially contribute to inflation.

4. What is the approximate percentage of the world's oil supply that passes through the Strait of Hormuz?

Approximately 20% of the world's oil supply passes through the Strait of Hormuz.

Exam Tip

Remember this percentage as it is a frequently tested fact in the Prelims exam.

5. Why was the Strait of Hormuz in the news recently?

The Strait of Hormuz was in the news due to its brief closure by Iran amidst ongoing nuclear talks with the United States in 2026. This event highlighted the tensions surrounding the negotiations and the strategic importance of the waterway.

6. What are the recent developments related to the Strait of Hormuz and US-Iran relations?

Recent developments include the brief closure of the Strait of Hormuz by Iran in 2026 during nuclear talks with the US. The US Navy closely monitored the situation, emphasizing the need for freedom of navigation. Discussions continue regarding Iran's nuclear program, with both sides seeking a resolution to longstanding disputes.

7. What is the geopolitical significance of the Strait of Hormuz?

The Strait of Hormuz is a critical chokepoint for global oil supplies, making it a region of intense geopolitical interest. Any disruption to navigation in the strait can have significant consequences for global energy markets and international security, drawing in major global powers.

8. How does the closure of the Strait of Hormuz relate to the concept of 'Freedom of Navigation'?

The closure of the Strait of Hormuz directly challenges the principle of 'Freedom of Navigation,' which asserts the right of all states to navigate international waterways without obstruction. Iran's actions are viewed by some as a violation of this principle, raising concerns about maritime security and international law.

9. In the context of the Strait of Hormuz closure, what are the potential implications for India's energy security?

Given India's reliance on oil imports, particularly from the Persian Gulf region, any disruption to navigation through the Strait of Hormuz could significantly impact India's energy security. This could lead to higher energy costs, supply shortages, and potential economic instability.

10. What are the key dates to remember related to the Strait of Hormuz and US-Iran nuclear talks?

The key date to remember is 2026, the year of the Strait of Hormuz closure and US-Iran nuclear talks.

Practice Questions (MCQs)

1. Consider the following statements regarding the Strait of Hormuz: 1. It connects the Persian Gulf to the Arabian Sea. 2. Approximately 20% of the world's oil passes through it. 3. The United States Navy does not monitor the strait due to international agreements. Which of the statements given above is/are correct?

  • A.1 and 2 only
  • B.2 and 3 only
  • C.1 and 3 only
  • D.1, 2 and 3
Show Answer

Answer: A

Statement 1 is CORRECT: The Strait of Hormuz connects the Persian Gulf to the Arabian Sea. Statement 2 is CORRECT: Approximately 20% of the world's oil passes through the Strait of Hormuz, making it a critical chokepoint for global energy supplies. Statement 3 is INCORRECT: The US Navy actively monitors the Strait of Hormuz to ensure freedom of navigation and to respond to any potential threats to maritime security. The news summary mentions the US Navy closely monitored the situation.

2. Which of the following statements best describes the strategic importance of the Strait of Hormuz? A) It is a major fishing ground for countries in the Persian Gulf. B) It is a vital waterway through which approximately 20% of the world's oil passes. C) It is a popular tourist destination known for its coral reefs. D) It is a demilitarized zone under the supervision of the United Nations.

  • A.A
  • B.B
  • C.C
  • D.D
Show Answer

Answer: B

The Strait of Hormuz is strategically important because it is a vital waterway through which approximately 20% of the world's oil passes. This makes it a critical chokepoint for global energy supplies. The other options are incorrect as they do not accurately reflect the strait's primary strategic significance.

3. Assertion (A): Closure of the Strait of Hormuz can significantly impact global oil supplies. Reason (R): The Strait of Hormuz is a narrow waterway through which a substantial percentage of the world's oil transits. In the context of the above statements, which of the following is correct? A) Both A and R are true, and R is the correct explanation of A. B) Both A and R are true, but R is not the correct explanation of A. C) A is true, but R is false. D) A is false, but R is true.

  • A.A
  • B.B
  • C.C
  • D.D
Show Answer

Answer: A

Both the assertion and the reason are true, and the reason correctly explains the assertion. The Strait of Hormuz's strategic importance lies in its role as a major transit route for oil, making its closure a significant threat to global oil supplies. Approximately 20% of the world's oil passes through it.

4. With reference to the recent tensions surrounding the Strait of Hormuz, which of the following international legal principles is most relevant? A) Doctrine of Lapse B) Transit Passage C) Doctrine of Absolute Liability D) Principle of Comity

  • A.A
  • B.B
  • C.C
  • D.D
Show Answer

Answer: B

The principle of Transit Passage is most relevant. It, as defined under the United Nations Convention on the Law of the Sea (UNCLOS), allows ships and aircraft to pass through international straits, like the Strait of Hormuz, quickly and without impediment. The recent tensions often involve disputes over the application of this principle.

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