• Recently, Iran has resumed enriching uranium up to 20% in violation of the 2015 nuclear deal and also seized a South Korean-flagged tanker near the crucial Strait of Hormuz.
  • Meanwhile, the USA has decided to keep nuclear powered aircraft carrier Nimitz in the Gulf region in the wake of threats from Iran.


  • Uranium Enrichment:
    • Natural uranium consists of two different isotopes – nearly 99% U-238 and only around 0.7% of U-235.
      • U-235 is a fissile material that can sustain a chain reaction in a nuclear reactor.
    • Enrichment process increases the proportion of U-235 through the process of isotope separation (U-238 is separated from U-235).
    • For nuclear weapons, enrichment is required upto 90% or more which is known as Highly Enriched Uranium/weapons-grade uranium.
    • For nuclear reactors, enrichment is required upto 3-4% which is known as Low Enriched Uranium/reactor-grade uranium.

2015 Nuclear Deal:

  • In 2015, Iran with the P5+1 group of world powers – the USA, UK, France, China, Russia, and Germany agreed on a long-term deal on its nuclear programme.
    • The deal was named as Joint Comprehensive Plan of Action (JCPOA) and in common parlance as Iran Nuclear Deal.
    • Under the deal, Iran agreed to curb its nuclear activity in return for the lifting of sanctions and access to global trade.
    • The agreement allowed Iran to accumulate small amounts of uranium for research but it banned the enrichment of uranium, which is used to make reactor fuel and nuclear weapons.
    • Iran was also required to redesign a heavy-water reactor being built, whose spent fuel would contain plutonium suitable for a bomb and to allow international inspections.
  • In May 2018, the USA abandoned the deal criticising it as flawed and reinstated and tightened its sanctions.
  • Since sanctions were tightened, Iran has been steadily breaking some of its commitments to pressure the remaining signatories to find a way to provide sanctions relief. 

Issues Involved:

  • The dual incidents come amid heightened tensions between Iran and the USA.
  • Enrichment could shorten Iran’s time it would take to develop a nuclear bomb.
  • Israel criticised Iran’s enrichment decision.
    • Iran’s decision to begin enriching to 20% purity a decade ago nearly triggered an Israeli strike targeting its nuclear facilities, tensions that only abated with the 2015 nuclear deal.
    • A resumption of 20% enrichment could see that brinkmanship return as that level of purity is only a technical step away from weapons grade levels of 90%.
      • Brinkmanship is the art or practice of pursuing a dangerous policy to the limits of safety before stopping, especially in politics.
  • Previously the International Atomic Energy Agency (IAEA) expressed serious concerns over Iran’s blocking of inspections of two suspect locations of Uranium enrichment for more than four months.

Geographic Location:

  • It is the waterway separating Iran and Oman, linking the Persian Gulf to the Gulf of Oman and the Arabian Sea.
  • On the north coast lies Iran, and on the south are the UAE and Musandam, an enclave of Oman.
  • The Strait is 21 miles wide at its narrowest point, but the shipping lane is just two miles wide in either direction.


  • The Strait of Hormuz is one of the world’s most strategically important choke points.
  • Two-thirds of the oil and half the Liquefied Natural Gas (LNG) Indian imports come through the strait between Iran and Oman.
  • As much as 18 million barrels of oil pass through the Strait of Hormuz every day, accounting for one-third of the global oil trade.
  • third of the world’s LNG trade also passes through the strait.

Issues in the Strait:

  • The strait of Hormuz plays a vital geopolitical role to the point where the US Fifth Fleet guards this strait.
  • During the recent years, Iran has threatened the safe passage of oil tankers in this strait.


  • All countries part of the 2015 deal should engage constructively and resolve all issues peacefully and through dialogue.
  • Both the USA and Iran must act with strategic restraint as any crisis in West Asia will not only affect the region as a whole but will have a detrimental impact on global affairs as well.

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