Strait of HormuzUS forces struck 2 Iranian tankers at Hormuz.
Pakistan passed a US ceasefire memorandum to Iran; the Strait has been closed 70 days, carrying a fifth of global oil.
Secretary of State Marco Rubio expected Tehran’s response Friday; Trump threatened “one big glow” without a deal.
Sources: The Guardian, Le Monde.fr, CBC News
THE CHOKEPOINT
Hormuz is 33 km wide at its narrowest, with shipping lanes just 3 km each. Roughly 21 million barrels of oil pass through daily — about a fifth of global consumption. The deepest channel hugs the Iranian side, which is why Iranian naval positioning matters disproportionately.
WHY IT CAN'T BE BYPASSED
Saudi Arabia's East-West Pipeline and the UAE's Habshan-Fujairah line could reroute maybe a third of Gulf exports between them. The rest has no alternative route — including most Qatari LNG and nearly all Kuwaiti and Iraqi crude.
THE TANKER WAR PRECEDENT
From 1984 to 1988, Iran and Iraq attacked over 400 commercial ships in the Gulf. Oil prices spiked but markets adapted — tankers were reflagged under US and Kuwaiti flags and escorted by warships. The lesson planners took: disruption is easier to threaten than to sustain. A 70-day full closure has no historical parallel.
WHY PAKISTAN CARRIES THE NOTE
Pakistan and Iran share an 900-km border and a long history of backchannel diplomacy. Islamabad maintains diplomatic relations with both Washington and Tehran — unlike most US allies in the region — and has a Shia minority that gives it sectarian cover Saudi or Emirati intermediaries lack. Oman traditionally played this role; that Pakistan is now carrying the memo signals how compromised the Gulf channels have become.
THE LEGAL REGIME
Under UNCLOS Article 38, ships have a right of transit passage through international straits — coastal states cannot suspend passage. Iran ratified UNCLOS in 1982 but has long argued Hormuz is governed by its domestic law, not the convention. The US never ratified UNCLOS at all, but enforces its transit-passage clause as customary international law.
THE MARKET'S READ
Prediction markets price the odds of a permanent US-Iran peace deal and the risk of US military escalation. The gap between them is where the diplomacy actually lives — a partial deal that defers the harder questions.