You don't need to know what velayat-e faqih means to follow this war. But if you've hit a term in this briefing that stopped you — this is where to look it up. Every organization, doctrine, and acronym, in plain English.
Velayat-e Faqih
veh-lah-YAT-eh fah-KEEH · Persian
Literally "Guardianship of the Islamic Jurist" — the foundational political-theological doctrine of the Islamic Republic, holding that a supreme religious scholar (the Supreme Leader) must govern until the return of the Hidden Imam. Created by Ayatollah Khomeini. The basis of Khamenei's authority.
See also: Assembly of Experts, Supreme Leader
IRGC
Islamic Revolutionary Guard Corps · Sepah-e Pasdaran
Iran's elite parallel military force, founded in 1979 to protect the revolution. Controls Iran's ballistic missile program, the Quds Force (foreign operations), and extensive economic holdings. Designated a foreign terrorist organization by the U.S. in 2019. Distinct from the conventional Iranian Army (Artesh).
See also: Quds Force, Velayat-e Faqih
Strait of Hormuz
hore-MOOZ
The 39-km-wide strategic chokepoint between Iran and Oman at the mouth of the Persian Gulf. Approximately 20% of global oil supply and 30% of global LNG transits here daily. Iran has repeatedly threatened closure; on Day 3 (March 2, 2026), declared it closed to all traffic — a declaration not fully enforced but triggering insurance cancellations.
See also: VLCC, P&I Insurance
War Powers Resolution
50 U.S.C. § 1541–1548 · 1973
U.S. law requiring the President to notify Congress within 48 hours of committing armed forces to hostilities, and to terminate operations within 60 days absent Congressional authorization. Clock began February 28, 2026. Authorization expires April 29, 2026. Senate voted 47–53 to block a restriction; House vote scheduled March 23.
See also: AUMF, Constitutional Clock
Quds Force
KOODZ · Arabic: "Jerusalem"
The IRGC's elite extraterritorial operations unit, responsible for Iran's network of proxy forces including Hezbollah, Hamas, PIJ, Houthis, and Iraqi militias. Reported strength of approximately 20,000 personnel. Commands and funds the "Axis of Resistance."
See also: IRGC, Axis of Resistance, Radwan Force
Radwan Force
rad-WAHN · Arabic: "Satisfaction"
Hezbollah's elite commando force, trained and equipped for ground infiltration of northern Israel. Estimated 5,000–6,000 fighters. Specifically designed to occupy and hold Israeli territory in the opening hours of a ground war. Named for Imad Mughniyeh's nom de guerre.
See also: Hezbollah, Blue Line
PJAK
pee-ZHAK · Kurdish
Party of Free Life of Kurdistan (Partiya Jiyana Azad a Kurdistanê) — Kurdish insurgent organization operating in northwestern Iran (Kurdistan Province). Ideologically affiliated with PKK. Has conducted guerrilla operations against IRGC. CIA reportedly began covert arming on March 5 (Day 5). A ground operation would open Iran's northwestern flank.
See also: Kurdish Question, PKK
VLCC
Very Large Crude Carrier
Supertankers capable of carrying 1.9–2.2 million barrels of crude oil (approximately 300,000 tonnes). The primary vessels through which Gulf oil is exported. Charter rates serve as the primary real-time indicator of Strait of Hormuz risk — hit an all-time record of $423,736/day (+94%) on D+2 (March 2).
See also: Strait of Hormuz, P&I Insurance
Assembly of Experts
Majles-e Khobregan · Persian
The 88-member clerical body constitutionally empowered to select, oversee, and dismiss the Supreme Leader. Members are senior clerics elected by the Iranian public. Qom IDF strikes on March 3 (Day 3) killed several members; quorum for a succession vote is uncertain. Normal term: 8 years.
See also: Velayat-e Faqih, Alireza Arafi
Operation Epic Fury
U.S./Israeli joint military campaign · Feb 28, 2026
The U.S.-Israeli joint air campaign against Iran, launched February 28, 2026 at 03:47 Tehran local time. Objectives: destroy Iran's nuclear program, suppress Iranian retaliation capability, and create conditions for regime change or capitulation. Day 1 involved 2,500+ strikes across 47 sites. Named designation is classified; "Epic Fury" reported by Reuters based on leaked CENTCOM communications.
See also: CENTCOM, Three Objectives
P&I Insurance
Protection & Indemnity · Lloyd's of London
Marine liability insurance covering third-party risks for ships, including war risk, crew injury, and cargo damage. P&I clubs (mutuals) cancelled Gulf coverage on March 2, effectively making it legally and financially impossible for most commercial vessels to transit the Strait of Hormuz regardless of Iran's closure declaration. The insurance cancellation is the de facto blockade.
See also: VLCC, Strait of Hormuz
Blue Line
UN delineation · April 2000
The UN-demarcated border between Lebanon and Israel, established following Israeli withdrawal from southern Lebanon in 2000. Not a recognized international border. IDF forces confirmed crossing it on March 8 (Day 9). UNIFIL (UN peacekeeping force, ~10,000 troops) is present but lacks authority to use force to prevent crossings.
See also: Radwan Force, UNIFIL, Hezbollah
Article 5 (NATO)
The collective defense clause of the 1949 North Atlantic Treaty. States that an armed attack on one NATO member is considered an attack on all. Has been invoked once in NATO history, after September 11, 2001. Two Iranian ballistic missiles have been intercepted over Turkey (a NATO member) during the current conflict. Turkey has explicitly declined to invoke Article 5 — or even Article 4 (which requires only consultation). A deliberate Iranian strike on Incirlik Air Base, per RUSI analyst Burcu Ozcelik, "would create immediate pressure for a collective NATO response."
See also: Turkey, Incirlik, NATO
60% Enriched Uranium
Uranium enriched to 60% U-235 purity — far above the 3.5–5% used for civilian power generation, but below the 90% threshold required for weapons-grade material. Converting 60% to 90% takes weeks if functional centrifuges are available. Iran's 450 kg stockpile at Isfahan at this purity level could produce 11 nuclear weapons if fully enriched. IAEA Director-General Grossi confirmed on March 9 that the stockpile is not fully destroyed and remains accessible.
See also: Isfahan, IAEA, Natanz, Nuclear
Hojatoleslam
A mid-level clerical rank in Shia Islam, below Ayatollah and Grand Ayatollah. Mojtaba Khamenei holds this rank — he is not an Ayatollah. His father Ali Khamenei also held only this rank when appointed Supreme Leader in 1989; Iran's constitution was subsequently amended to remove the Ayatollah requirement. The constitution may again be amended under IRGC pressure to accommodate Mojtaba.
See also: Velayat-e Faqih, Mojtaba Khamenei, Assembly of Experts
Operation Midnight Hammer
The June 2025 U.S.-Israeli air campaign that targeted Iran's nuclear facilities — a precursor to Operation Epic Fury. Seven B-2 bombers flew from Whiteman AFB and struck Fordow, Natanz, and Isfahan with 14 GBU-57A/B "bunker buster" bombs. It was significantly smaller in scope than Epic Fury (350 sorties vs. 1,000+ targets in first 24 hours of Epic Fury). Iran partially rebuilt its nuclear and missile infrastructure in the eight months that followed, which triggered the current conflict.
See also: Operation Epic Fury, Natanz, Fordow, Isfahan