Level 1 — Absolute Beginner

The United States hit more than 80 places in Iran overnight. This happened after Iran attacked three big ships in the Strait of Hormuz.

The Strait of Hormuz is a narrow sea path. Many oil ships travel through it every day.

The US said its planes and ships hit Iranian radar, air defense, and small boats used by Iran's army. This was to stop Iran from attacking more ships.

Iran said it will give a 'crushing response.' The two countries had a ceasefire, but now it feels weak and could break.

strike

a sudden attack, often by planes or missiles

tanker

a large ship that carries oil

strait

a narrow strip of water connecting two seas

ceasefire

an agreement to stop fighting

sanction

a rule that stops a country from trading with others

radar

a machine that uses radio waves to find planes or ships

response

an answer or reaction to something

military

having to do with soldiers, ships, or an army

Level 2 — Elementary

The United States military carried out a new round of airstrikes against Iran overnight, hitting more than 80 targets. US Central Command said the strikes were an immediate response to Iran attacking three commercial ships in the Strait of Hormuz, a narrow but very important waterway for global oil shipping.

The targets included Iranian air defense systems, command and control centers, coastal radar stations, anti-ship missile sites, and more than 60 small boats used by Iran's Islamic Revolutionary Guard Corps. The US said the goal was to reduce Iran's ability to keep attacking ships moving through the strait.

The three tankers that were attacked were the Marshall Islands-flagged Al Rekayyat, the Saudi-flagged Wedyan, and the Liberia-flagged Cyprus Prosperity. The US called these attacks a violation of the ceasefire and of freedom of navigation, the right of ships to travel safely through international waters.

In response, Iran's top military command warned that it would deliver a 'crushing response' to what it called American aggression. The United States also reimposed sanctions on Iranian oil sales, adding new economic pressure on top of the military strikes.

airstrike

an attack carried out using military aircraft or missiles

waterway

a route for ships to travel on water

air defense

weapons and systems used to shoot down enemy aircraft or missiles

coastal

located near or along a coastline

violation

the breaking of a rule or agreement

freedom of navigation

the right of ships to travel safely through international waters

aggression

hostile or forceful behavior toward another country

economic pressure

actions meant to hurt a country's money or trade to force a change

Level 3 — Intermediate

Early Wednesday, US Central Command confirmed that American forces had completed a fresh round of airstrikes against Iran, hitting more than 80 targets in what it described as an immediate response to Iranian attacks on three commercial vessels transiting the Strait of Hormuz. The overnight operation marks one of the most significant escalations since a ceasefire between the two countries was reached earlier this year, and it comes just as Iran is holding a multi-day state funeral for its late Supreme Leader.

The US strikes focused on degrading Iran's capacity to keep threatening maritime traffic through the strait, a route through which a large share of the world's oil passes. Targets included air defense systems, command and control networks, coastal radar installations, anti-ship missile capabilities, and more than 60 small boats operated by the Islamic Revolutionary Guard Corps. Iranian state media also reported explosions on Kharg Island, a key hub for the country's oil exports, along with blasts near the port cities of Bandar Abbas and Sirik.

The tankers targeted by Iran, the Marshall Islands-flagged Al Rekayyat, the Saudi-flagged Wedyan and the Liberia-flagged Cyprus Prosperity, were all transiting the strait when they were struck. US officials characterized the attacks as a clear violation of both the ceasefire and the principle of freedom of navigation, which guarantees ships safe passage through international waters regardless of the flag they fly.

Iran's top joint military command responded defiantly, warning that its armed forces would deliver 'a crushing response to the US aggression and terrorist action.' With the ceasefire now described as increasingly fragile, the United States simultaneously reimposed sanctions on Iranian oil exports, layering economic pressure on top of the military response and raising fresh questions about whether the fragile truce can hold.

vessel

a ship or large boat

maritime traffic

the movement of ships through a sea route

command and control network

the system military forces use to direct troops and weapons

installation

a military site or facility built for a specific purpose

defiant

showing bold resistance and refusal to back down

fragile

easily broken or likely to fail

truce

a temporary agreement to stop fighting

layer (pressure)

to add one form of pressure on top of another

Level 4 — Advanced

In the early hours of Wednesday, US Central Command confirmed the completion of a substantial new round of airstrikes against Iranian military infrastructure, striking more than 80 targets in what officials characterized as an immediate and proportionate response to Iranian attacks on three commercial vessels transiting the Strait of Hormuz. The operation represents one of the sharpest escalations since a ceasefire was brokered between Washington and Tehran, unfolding against the backdrop of Iran's multi-day state funeral proceedings for its recently deceased Supreme Leader, a period during which many analysts had anticipated relative restraint from both sides.

The strike package was designed to systematically degrade Iran's ability to threaten commercial shipping through one of the world's most economically consequential maritime chokepoints. Targets encompassed integrated air defense systems, command-and-control infrastructure, coastal radar installations, anti-ship missile batteries, and upward of 60 fast attack craft operated by the Islamic Revolutionary Guard Corps' naval branch. Iranian state media additionally reported secondary explosions on Kharg Island, the country's principal oil export terminal, along with blasts near the strategically positioned port cities of Bandar Abbas and Sirik, suggesting the campaign extended beyond purely defensive military assets into Iran's broader energy export infrastructure.

The precipitating attacks targeted the Marshall Islands-flagged Al Rekayyat, the Saudi-flagged Wedyan, and the Liberia-flagged Cyprus Prosperity as they transited the strait, a corridor through which a substantial share of globally traded crude oil passes daily. Washington framed the assault as a dual violation, breaching both the negotiated ceasefire and the customary international law principle of freedom of navigation, which obligates states to permit unimpeded passage for vessels regardless of flag state, through international straits used for global navigation.

Iran's senior joint military command responded with unambiguous defiance, vowing that the country's armed forces would deliver 'a crushing response to the US aggression and terrorist action.' Washington compounded the military pressure by simultaneously reimposing sanctions on Iranian crude exports, a coordinated economic and military posture that analysts warn leaves little room for de-escalation and casts substantial doubt over whether the increasingly precarious ceasefire framework can be salvaged in the days ahead.

proportionate

matched appropriately in scale or severity to the provoking act

chokepoint

a narrow geographic passage that is strategically vital for trade or military movement

integrated air defense system

a coordinated network of radar, missiles, and command systems that defends airspace

fast attack craft

small, high-speed military boats designed for swift offensive operations