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Iran-Israel war: A day‑by‑day rundown of the escalating crisis


What Happened

  • On February 28, 2026, the United States and Israel launched joint airstrikes on Iranian cities including Tehran, Isfahan, Qom, Karaj, and Kermanshah following President Trump's unmet 10-day deadline for nuclear negotiations.
  • Supreme Leader Ayatollah Ali Khamenei was killed in the strikes along with approximately 40 senior Iranian officials including the Defence Minister and the IRGC commander.
  • Iran retaliated with waves of ballistic missiles and drones targeting Israel, US military bases in Jordan, Kuwait, Bahrain, Qatar, Iraq, Saudi Arabia, and the UAE; the IRGC claimed to have fired four ballistic missiles at the US aircraft carrier USS Abraham Lincoln.
  • Hezbollah, in the first such action since its November 2024 ceasefire, fired rockets at northern Israel on March 1, marking a significant widening of the conflict.
  • By March 4, explosions continued for a fifth consecutive day across Iran, Israel, and multiple Middle Eastern states, with over 200 tankers stranded outside the Strait of Hormuz.

Static Topic Bridges

The Islamic Revolutionary Guard Corps (IRGC)

The IRGC is a branch of Iran's Armed Forces established after the 1979 Islamic Revolution, distinct from the regular military (Artesh) and answerable directly to the Supreme Leader rather than the elected government. It was created to protect the revolutionary system and has since become Iran's most powerful military and economic institution. Its extraterritorial wing, the Quds Force, manages Iran's network of proxy militias — the so-called "Axis of Resistance" — including Hezbollah in Lebanon, Hamas in Gaza, Houthi rebels in Yemen, and various militias in Iraq and Syria. The EU formally designated the IRGC as a terrorist organisation in January 2026.

  • IRGC controls approximately one-third of Iran's economy through affiliated foundations (bonyads)
  • Quds Force trains, arms, and funds proxy groups across the Middle East
  • IRGC commands Iran's ballistic missile programme, one of the largest in the region
  • The killing of IRGC commander Mohammad Pakpour in the US-Israel strikes is a major blow to Iran's command structure

Connection to this news: The decapitation of IRGC's top leadership alongside Khamenei has disrupted the chain of command managing Iran's retaliatory operations and proxy networks, raising questions about whether the Axis of Resistance can sustain coordinated strikes without centralised Iranian direction.

Succession Crisis and Iran's Constitutional Framework

Iran's constitution vests supreme political and religious authority in the position of Rahbar (Supreme Leader), currently held since 1989 by Khamenei following Ayatollah Khomeini's death. The Assembly of Experts — an elected body of 88 Islamic scholars — is constitutionally empowered to appoint, monitor, and dismiss the Supreme Leader under Articles 107-111 of Iran's constitution. Khamenei had not publicly named a successor, and his death triggers a constitutional succession process in a country already under military attack, with institutions severely weakened.

  • Assembly of Experts meets in closed session to select the next Supreme Leader
  • Candidates must be a marja (senior Islamic jurist) acceptable to the establishment
  • Iran declared 40 days of national mourning after Khamenei's death
  • Mojtaba Khamenei (son) and Ebrahim Raisi's allies have been cited as potential successors in earlier analyses

Connection to this news: The power vacuum at the apex of Iran's theocratic system during an active war creates enormous uncertainty about who controls Iran's nuclear programme, missile arsenal, and proxy forces — a factor that directly shapes India's energy security and Gulf diaspora safety calculus.

Strait of Hormuz and Global Energy Security

The Strait of Hormuz is a narrow waterway between Iran and Oman-UAE, connecting the Persian Gulf to the Gulf of Oman and Arabian Sea. At its narrowest point, the shipping lanes are just 6 km wide (3 km in each direction), making it the world's most critical oil chokepoint. Approximately 30% of the world's seaborne crude oil, 20% of global LNG, and 16% of gasoline and naphtha pass through it daily. Iran's IRGC has periodically threatened closure, most recently in 2019 and now in 2026.

  • 20 million barrels of oil per day transited through the strait in 2024, worth ~$500 billion annually
  • Tanker traffic dropped approximately 70% following IRGC closure warnings in early March 2026
  • Brent crude rose 13% to $82/barrel within days of the conflict escalating
  • Alternative route: Oman's Madhab pipeline and Saudi Arabia's East-West pipeline have limited bypass capacity

Connection to this news: India imports approximately 85% of its crude oil needs; a sustained Hormuz blockade would trigger severe energy price inflation, disrupt industrial supply chains, and push India to accelerate strategic petroleum reserve drawdowns and alternative supplier negotiations.

Key Facts & Data

  • US-Israel joint strikes began February 28, 2026 — first such coordinated attack on Iran's leadership
  • Khamenei had served as Supreme Leader since 1989 (37 years)
  • Iran launched missiles at US bases in at least 7 Gulf and regional states simultaneously
  • Three US troops were confirmed killed in Iranian retaliatory strikes on the USS Abraham Lincoln
  • Over 150 ships had anchored outside the Strait of Hormuz to avoid risk by March 4
  • India has approximately 1 crore (10 million) citizens in Gulf countries
  • The EU designated the IRGC as a terrorist organisation on January 29, 2026