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Iranian foreign relations

Iran-US Nuclear Standoff Exposes Limits of Arms Control Regime

Strategic Insights

— 2 min read

The Iran-US nuclear standoff has exacerbated the inherent weaknesses of the nuclear arms control regime, with Iran continuing to enrich uranium despite US pressure. The crisis deepened when US President Donald Trump threatened military action if Iran failed to sign a new nuclear deal, with Trump stating, "They won't be enriching. If they enrich, then we're going to have to do it the other way." The Iranian leadership has, however, remained resolute in its determination to continue enriching uranium, citing its legitimate right under the Nuclear Non-Proliferation Treaty (NPT).

Key Takeaways:

  • Iran has amassed enough uranium enriched to 60% – a short step away from weapons-grade, according to the International Atomic Energy Agency (IAEA) estimates, which is enough to manufacture nine nuclear weapons.
  • The Iranian leadership has rejected the US proposal to allow temporary uranium enrichment under IAEA safeguards, citing its principles of independence and sovereignty.
  • The US special envoy, Steve Witkoff, has declared that Washington will not tolerate any uranium enrichment by Iran, calling it "one very, very clear red line".
  • Pakistan's Prime Minister, Shehbaz Sharif, has reiterated Islamabad's stance that Iran must fulfill its obligations under the NPT but has a right to develop and operationalize a nuclear program for civilian use.
  • Saudi Arabia and the United Arab Emirates have publicly supported diplomatic efforts to resolve the nuclear standoff, with Prince Khalid bin Salman visiting Iran in April 2025.
  • The neighbours of Iran are opposed to Israeli Prime Minister Benjamin Netanyahu's militaristic approach against Iran, which they believe would deteriorate regional security and strengthen Iran's resolve for nuclear weapons.

Statistics:

  • Iran has amassed enough uranium enriched to 60% – enough to manufacture nine nuclear weapons (IAEA estimates).
  • The US proposal to allow temporary uranium enrichment under IAAE safeguards was rejected by Iran in June 2025.
  • Over 60% of the uranium enriched by Iran is below 5% uranium-235, making it unsuitable for nuclear weapons production (IAEA estimates).
  • The US military operation against Iran's nuclear facilities would increase the likelihood of a nuclear arms race in the Middle East, according to estimates.

Sources:

  • Iran-US nuclear standoff, The Diplomat, June 2025.
  • International Atomic Energy Agency (IAEA) estimates.
  • US President Donald Trump's statement on the Iran-US nuclear standoff, June 6, 2025.
  • IAEA report on Iran's nuclear program, 2025.
  • Pakistan Prime Minister Shehbaz Sharif's statement on Iran's nuclear program, May 26, 2025.
  • Saudi Arabia's official stance on the Iran-US nuclear standoff, April 2025.
  • Israeli Prime Minister Benjamin Netanyahu's statement on the Iran-US nuclear standoff, 2025.

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