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Iran walks a tightrope between diplomacy and deterrence

February 24, 2026 5 min read International Relations GS2 (International Relations West Asia geopolitics nuclear non-proliferation)
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What Happened

  • As of late February 2026, Iran was engaged in dual-track diplomacy — pursuing nuclear negotiations with the United States in Geneva while publicly maintaining its deterrence posture against potential US and Israeli military strikes on its nuclear facilities.
  • Iranian Foreign Minister Abbas Araghchi stated on February 25, 2026, that a "historic" agreement with the US was "within reach" ahead of renewed Geneva talks, emphasising the need to prioritise diplomacy.
  • The US had assembled its largest military force in the Middle East in recent decades, with President Trump threatening military action if Iran failed to reach a nuclear deal.
  • Iran entered 2026 with approximately 440 kg of uranium enriched to 60% purity — enough, if further enriched, to 90%+ weapons-grade, for as many as 10 nuclear devices.
  • The strategic context: Iran's "Axis of Resistance" regional network had been severely degraded in 2024–2025 through Israeli operations against Hezbollah (Lebanon), Hamas (Gaza), and Iranian proxy forces in Syria.

Static Topic Bridges

Joint Comprehensive Plan of Action (JCPOA) and Iran's Nuclear Programme

The Joint Comprehensive Plan of Action (JCPOA), signed on July 14, 2015, between Iran and the P5+1 (US, UK, France, Russia, China, Germany) was a landmark nuclear deal that limited Iran's uranium enrichment and nuclear infrastructure in exchange for sanctions relief. Under JCPOA, Iran agreed to: cap enrichment at 3.67%; reduce its low-enriched uranium stockpile from 10,000 kg to 300 kg; limit centrifuges to 6,104 older models; cease enrichment at the Fordow facility; and accept enhanced IAEA inspections. In May 2018, the Trump administration unilaterally withdrew from the JCPOA and reimposed sanctions under its "maximum pressure" campaign. Iran then progressively violated JCPOA limits — expanding enrichment to 20%, then 60%, and stockpiling far beyond permissible levels. By 2026, no functional JCPOA framework remained.

  • JCPOA signed: July 14, 2015, Vienna; implemented January 16, 2016.
  • Parties: Iran + P5+1 (US, UK, France, Russia, China + Germany), facilitated by EU.
  • Key limits: Enrichment capped at 3.67%; stockpile reduced to 300 kg; centrifuges limited to 6,104.
  • US withdrawal: May 8, 2018 (Trump); "maximum pressure" sanctions campaign reimposed.
  • Iran's current enrichment: 60% purity (February 2026); 440 kg stockpile — sufficient for ~10 weapons if further enriched.
  • Breakout time: US intelligence assessed Iran was weeks away from weapons-grade enrichment capability as of early 2026.

Connection to this news: The failed JCPOA framework and Iran's subsequent nuclear escalation created the very crisis that brought both sides back to the negotiating table in 2026 under renewed military pressure.

Iran's "Axis of Resistance" and Regional Deterrence Strategy

Iran's foreign policy since 1979 has centred on "strategic depth through proxies" — supporting non-state armed groups and allied state actors across the Middle East to extend its deterrence perimeter beyond its borders. This network, known as the "Axis of Resistance," includes: Hezbollah (Lebanon) — Iran's most capable proxy and a direct military deterrent against Israel; Hamas and Palestinian Islamic Jihad (Gaza); Houthi forces (Yemen); Popular Mobilisation Forces (PMF/Hashd al-Shaabi) in Iraq; and Syrian government forces. The logic of "forward deterrence" is to engage adversaries far from Iranian soil, preventing Israeli or US strikes from directly threatening the Iranian state. However, 2024–2025 saw this strategy severely weakened: Israeli operations decimated Hezbollah's leadership and missile arsenal; Syrian President Assad fell in December 2024; and Houthi capabilities were degraded by US-UK strikes.

  • Hezbollah (Lebanon): Iran's premier proxy; possesses 130,000+ rockets and missiles; severely degraded in 2024 Israeli operations.
  • Hamas (Gaza): Palestinian militant group; attacks on Israel triggered the 2023 Gaza war.
  • Houthis (Yemen): Control much of western Yemen; attacked Red Sea shipping disrupting global trade.
  • PMF (Iraq): Iran-aligned militia network; conducts attacks on US forces in Iraq and Syria.
  • Assad's fall (December 2024): Loss of Syria as a land corridor for arms transfers to Hezbollah.
  • Iran's direct attacks on Israel: Two ballistic missile/drone barrages in April and October 2024 — largely intercepted.

Connection to this news: With its proxy deterrence network weakened, Iran faced the choice of direct nuclear negotiation with the US or accelerating nuclear capabilities as an alternative deterrent — the "tightrope" referenced in the article.

Economic Sanctions as a Coercive Tool

Economic sanctions are government-imposed restrictions on financial transactions, trade, investment, or travel targeting a foreign state, entity, or individual to compel a change in behaviour without military force. The US employs three main sanctions regimes: primary sanctions (targeting US persons and companies), secondary sanctions (targeting third-country entities doing business with the sanctioned country — making US market access conditional), and sectoral sanctions (targeting specific sectors like oil, banking, shipping). Iran has been subject to some of the most comprehensive US and UN sanctions globally: UN Security Council sanctions under Resolution 2231 (JCPOA framework); US OFAC sanctions on Iranian oil, banks, and shipping; and EU autonomous sanctions. The "maximum pressure" campaign (2018–2021) aimed to reduce Iranian oil exports to zero; Iran's workarounds included selling oil to China, India, and others through opaque shipping channels.

  • UNSC Resolution 2231 (2015): Endorsed JCPOA; provided for "snapback" mechanism restoring pre-JCPOA UN sanctions if Iran violated the deal.
  • US OFAC (Office of Foreign Assets Control): Administers and enforces US economic and trade sanctions.
  • Secondary sanctions: Deter third countries (including India) from buying Iranian oil or doing business with Iran under threat of losing US market access.
  • Iran's oil exports (2018–2020): Fell from ~2.5 million barrels/day to under 400,000 barrels/day under maximum pressure.
  • India's position: India historically imported significant Iranian oil; sharply reduced post-2018 US sanctions.
  • Snapback: EU triggered snapback mechanism in September 2025, formally restoring pre-JCPOA UN sanctions.

Connection to this news: The diplomatic track Iran pursued in 2026 was directly motivated by the economic devastation of sanctions — negotiations represent Iran's attempt to trade nuclear constraints for economic relief.

Key Facts & Data

  • 440 kg: Iran's stockpile of uranium enriched to 60% purity as of early 2026 — sufficient for ~10 nuclear devices if further enriched.
  • 3.67%: Maximum enrichment level permitted under the 2015 JCPOA.
  • May 2018: US withdrawal from JCPOA under Trump's "maximum pressure" campaign.
  • December 2024: Fall of Syrian President Assad — major blow to Iran's regional proxy network.
  • February 25, 2026: Iranian FM Araghchi stated a "historic" deal with the US was "within reach."
  • JCPOA parties: Iran + P5+1 (US, UK, France, Russia, China, Germany) — signed July 14, 2015.
  • Snapback mechanism: Triggered by EU in September 2025, restoring pre-JCPOA UN sanctions on Iran.