| January 17, 2025 | Pezeshkian and Putin sign Iran-Russia Comprehensive Strategic Partnership Treaty in Moscow. 20-year term. No mutual defense clause. | Al Jazeera; Carnegie; Foreign Policy | Formalizes axis but Russia unwilling to commit to Iran's defense |
| February 2025 | Trump signs NSPM reinstating "Maximum Pressure" campaign against Iran. Aims to drive oil exports to zero. Revokes sanctions waivers. | White House | Maximum pressure 2.0 begins; adds to economic pressures |
| February 2025 | IAEA reports Iran's 60% enriched uranium stockpile grew from 182 kg (Oct 2024) to 275 kg. | IAEA GOV/2025/24 | Nuclear program acceleration |
| March 2025 | Zarif resigns again (or forced out by judiciary). Economic wrangling cited. | IranWire; Al Jazeera | Reformist wing further marginalized |
| March 2025 | Trump sends letter to Khamenei urging nuclear negotiations, warning of military action. | Wikipedia (US-Iran negotiations) | Diplomatic opening coupled with threat |
| March 19, 2025 | Iranian rial passes 1,000,000 per dollar -- becomes least valuable currency in world. | Iran International | Symbolic and economic milestone of crisis |
| April 2025 | Saudi Defense Minister Khalid bin Salman visits Tehran, meets Khamenei. | ISPI; INSS | Saudi hedging strategy; maintaining diplomatic channel despite tensions |
| May 2025 | Saudi Arabia resumes Hajj flights with Iran (first in a decade). | ISPI | Normalization continues despite broader turmoil |
| May 2025 | DIA assesses Iran needs "probably less than one week" for enough weapons-grade HEU. | DIA; ISIS | Near-zero breakout time confirmed by US intelligence |
| May 2025 | US-Houthi ceasefire. Houthis halt Red Sea shipping attacks. | Soufan Center | Iran likely facilitated to create space for nuclear diplomacy |
| May 31, 2025 | IAEA confidential report: Iran possesses over 400 kg of 60% enriched uranium (~50% increase since February). | IAEA GOV/2025/50 | Stockpile growing rapidly toward weapons capability |
| June 13, 2025 | ISRAEL STRIKES IRAN: 200+ fighter jets, 330+ munitions, ~100 targets. Five waves of airstrikes. Mossad sabotages air defenses. Covert drone base near Tehran. Kills IRGC Commander Salami, CoS Bagheri, Aerospace Commander Hajizadeh, 30 generals, 9 nuclear scientists. | Britannica; Wikipedia; CNN; Al Jazeera | Transformative event: Decapitates IRGC leadership. Unprecedented direct strike. Fundamentally alters power dynamics. |
| June 15, 2025 | Iran and Houthis retaliate: 550+ ballistic missiles, 1,000+ drones. Hit Israeli cities (Bat Yam, Rehovot, Tel Aviv). 9 killed, ~200 injured in Israel. | Wikipedia; Britannica | Largest-ever Iranian direct strike on Israel |
| June 2025 | Pezeshkian orders suspension of Iran's IAEA cooperation after strikes. | Wikipedia (Pezeshkian) | Nuclear verification ends |
| June 2025 | Iran-backed Iraqi Shiite militias launch 3 drones at US base in western Iraq. | FDD Long War Journal | Proxy activation during war |
| June 22, 2025 | US STRIKES IRAN ("Operation Midnight Hammer"): 7 B-2 bombers, 14 GBU-57 bunker busters on Fordow, Natanz, Isfahan. Tomahawk missiles from submarine. | Wikipedia; Arms Control Association; Congress.gov | US directly strikes Iranian nuclear facilities for first time |
| June 23, 2025 | Iran launches missiles at US military base in Qatar. No American casualties. | Britannica | Iran retaliates against US -- risks major escalation |
| June 24, 2025 | CEASEFIRE between Israel and Iran under US pressure. Alternating 12-hour cessation periods. | Britannica | Ends Twelve-Day War but seen as tactical pause |
| July 2025 | Iran formally suspends IAEA cooperation. Pentagon assesses nuclear program set back ~2 years (but DIA says "maybe months"). Enriched uranium stockpile believed to have survived. | Arms Control Association; CNN; PBS | Competing assessments; verification impossible |
| July 2025 | Houthis resume Red Sea attacks (MV Magic Seas). | Soufan Center | Ceasefire breakdown |
| July 2025 | IRGC leadership replacements: Ahmad Vahidi (IRGC Commander), Abdolrahim Mousavi (CoS), Majid Mousavi (Aerospace). Ali Shadmani (Khatam al-Anbia) killed within 5 days by Israeli hit team. | Jerusalem Post; Al Jazeera | Replacement leadership vulnerable; key posts remain vacant |
| August 28, 2025 | E3 (France, Germany, UK) invoke JCPOA "snapback" mechanism at UN Security Council. | Arms Control Association; UN | International legal framework shifts against Iran |
| September 2025 | Inflation peaks at 48.6% (October figure). Rial below 1,000,000/dollar. | Iran International; IMF | Economic crisis deepens |
| September 27, 2025 | UN snapback sanctions officially reimposed. But implementation stalled -- no Sanctions Committee or Panel of Experts. | UN; Clingendael | Symbolic but practically limited impact |
| October 2, 2025 | Russia-Iran treaty enters into force. | Wikipedia | Formalized but limited partnership |
| October 2025 | Iran officially terminates JCPOA after 10 years. | Arms Control Association | Final death of nuclear deal |
| October 2025 | Iran oil exports hit 7-year high of 2.3 million bpd. | UANI; Iran International | Sanctions evasion succeeds despite maximum pressure |
| October 2025 | Houthis halt Red Sea attacks after Gaza peace plan takes effect. | Soufan Center | De-escalation linked to broader diplomacy |
| November 2025 | IAEA Board passes resolution demanding access to verify uranium stockpile. Iran cancels agreement. IAEA Director-General Grossi says access "long overdue." | IAEA; Arms Control Association | Verification crisis deepens |
| November 2025 | Stimson Center publishes "Khamenei's Eclipse" analysis: paralysis, infighting, factional warfare described. Khamenei isolated in bunker, relaying orders through single aide. | Stimson Center | Analytical consensus: governance crisis |
| December 2025 | Iran marks 2,228 executions in 2025 -- record under Khamenei's 37-year rule. | NCRI; Iran HRS | Repression escalation |
| December 28, 2025 | PROTESTS ERUPT: Tehran Grand Bazaar merchants strike over currency collapse. Rial at ~1,400,000/dollar. Inflation over 52%. | NPR; Washington Post; Britannica | Trigger: economic desperation; bazaar merchant class historically pivotal |