What Happened
- On February 28, 2026, Israel and the United States launched a coordinated joint military operation against Iran, codenamed "Operation Shield of Judah" (Israel) and "Operation Epic Fury" (US Pentagon designation).
- Israeli Prime Minister Benjamin Netanyahu stated the strikes were aimed at "removing the existential threat posed by the terrorist regime in Iran," specifically targeting Iran's missile programme.
- The strikes targeted multiple Iranian cities including Tehran, Qom, Kermanshah, Isfahan, and Karaj, with early strikes near offices of Ayatollah Ali Khamenei and President Pezeshkian.
- US President Donald Trump announced the US was carrying out "major combat operations in Iran," with attacks carried out by air and sea.
- Iran retaliated by launching missiles at Israel and at the US Navy's Fifth Fleet base in Bahrain, and announced drone offensives against Israeli targets.
- The operation commenced as Trump's previously stated 10-day diplomatic deadline to Iran expired.
Static Topic Bridges
Iran's Nuclear Programme and the JCPOA Framework
Iran's nuclear programme has been a central flashpoint in Middle Eastern geopolitics since 2002, when covert enrichment activities were publicly revealed. The Joint Comprehensive Plan of Action (JCPOA), signed in July 2015 between Iran and the P5+1 (US, UK, France, Russia, China + Germany) with EU mediation, was designed to limit Iran's uranium enrichment to 3.67% and reduce its enriched stockpile by 97% in exchange for sanctions relief. The US unilaterally withdrew from JCPOA in May 2018 under President Trump (first term), citing concerns over Iran's ballistic missile programme and regional activities. Iran subsequently walked back all JCPOA limits. By late 2024, Iran was estimated to possess enough enriched uranium for 5-6 nuclear weapons within weeks.
- Iran joined NPT (Nuclear Non-Proliferation Treaty): 1968 (as non-nuclear weapons state)
- JCPOA signed: July 14, 2015 (Vienna); parties: Iran + P5+1 + EU
- US withdrawal from JCPOA: May 8, 2018 (Trump's first term)
- Iran's enrichment as of 2024: Estimated capacity for 5-6 bombs within weeks
- UN General Assembly resolution (Dec 2, 2024): Called for legally binding instrument on autonomous weapons — separate but related arms governance context
- Iranian stockpile: ~22 times JCPOA limit as of October 2023 (IAEA estimate)
Connection to this news: The stated rationale for the strikes — removing Iran's "existential threat" — directly relates to Iran's nuclear advancement post-JCPOA collapse. UPSC Mains GS2 frequently tests the architecture of nuclear non-proliferation frameworks and geopolitical consequences of their breakdown.
US-Israel Strategic Alliance and Middle East Balance of Power
The United States and Israel maintain one of the world's most durable strategic partnerships, codified through a series of memoranda of understanding (MOUs) rather than a formal mutual defence treaty. The US provides Israel with approximately $3.8 billion annually in military assistance (as of pre-2026 figures) and has historically maintained a policy of ensuring Israel's "Qualitative Military Edge" (QME) in the region. This alliance has been a structural driver of Middle Eastern geopolitics, influencing the Abraham Accords (2020), US-Iran tensions, and regional arms dynamics.
- US-Israel: No formal mutual defence treaty; relationship governed by MOUs and strategic understandings
- Annual US military aid to Israel: ~$3.8 billion (Foreign Military Financing)
- Abraham Accords (2020): Israel normalized relations with UAE, Bahrain, Sudan, Morocco — US-brokered
- Iran's regional presence: Supports Hezbollah (Lebanon), Hamas (Gaza), Houthi rebels (Yemen), pro-Iran militias (Iraq) — the "Axis of Resistance"
- US Central Command (CENTCOM): Oversees US military operations across Middle East, Central and South Asia
Connection to this news: The joint nature of the operation — not unilateral Israeli action — represents a significant shift in US engagement posture in the region, with major implications for the regional order tested in GS2 international relations.
United Nations Security Council and Use of Force Under International Law
Under the UN Charter (Article 2(4)), member states are prohibited from the use or threat of force against the territorial integrity of any state. Exceptions exist under Article 51 (self-defence) and Chapter VII (UNSC-authorised collective action). A preventive strike against a nuclear programme — absent an ongoing armed attack — is disputed under international law and has no explicit UNSC authorisation. The US and Israel may invoke Article 51's pre-emptive self-defence doctrine ("Caroline doctrine"), though its legality remains contested in international law scholarship.
- UN Charter Article 2(4): Prohibition on use of force
- UN Charter Article 51: Right of individual and collective self-defence
- Chapter VII: UNSC authority to authorise use of force for peace and security
- P5 veto: Russia and China have historically blocked UNSC action against Iran
- Caroline doctrine: Pre-emptive self-defence permitted only if threat is "instant, overwhelming, leaving no choice of means"
Connection to this news: Any military strike on a sovereign nation triggers Article 2(4) scrutiny. The absence of UNSC authorisation — given the Russia-China veto — and the invocation of self-defence make this a live GS2 international law question.
Key Facts & Data
- Operation name (Israel): Shield of Judah; (US): Operation Epic Fury
- Date of strikes: February 28, 2026
- Targets: Tehran, Qom, Kermanshah, Isfahan, Karaj
- Iranian retaliation: Missiles at Israel and US base in Bahrain (Fifth Fleet HQ)
- JCPOA signed: July 2015; US withdrawal: May 2018; collapsed: 2019-2020
- Iran's NPT status: Non-nuclear weapons state signatory (1968)
- Iran uranium stockpile (Oct 2023): ~22 times JCPOA limit (IAEA)
- P5+1 in JCPOA: US, UK, France, Russia, China + Germany
- US Fifth Fleet HQ: Bahrain
- US CENTCOM HQ (Forward): Qatar (Al Udeid Air Base)