MARITIME CHOKEPOINT

What Happens If the Suez Canal Closes

Suez Canal · Held by 🇪🇬 Egypt · Measured across 4,320 simulated wars

Suez is the rarest closure in this model and the only one that is almost never merely a warning. Nearly every war that shuts this canal shuts it as a blockade, which is the exact inverse of the Bosphorus a thousand kilometres north. The cause is the same term read the other way round. Egypt does not sit in the blocs that get pulled into everyone else’s wars, so it stays out — and on the rare occasions it is in, it is in because the fighting has physically arrived, which means it has already been struck, which is precisely what buys the second rung of the ladder. The canal does not get harassed on its way to being closed. It skips that step. Five European states lose their sea lane when it does.

2.27% 98 / 4,320 Closed at least to harassment
2.15% 93 / 4,320 Partial blockade or worse
0% 0 / 4,320 Full control, transit forbidden

How a closure escalates

The engine sets a level per strait per round, and it is the lower of two terms: how badly the holder wants the strait shut, and whether it still has the ships, mines and coastal missiles to keep it shut. Willingness only ratchets up — a state that has been hit has less reason to reopen, not more. Capability is the only term that can fall, which is why a closure here is not permanent.

  1. Harassment — warnings issued to commercial vessels
  2. Partial blockade — ships targeted without authorization, and dependent states start losing cargo
  3. Full control — transit forbidden without authorization

Which term is holding it back

A level is the lower of two terms, so every strait is limited by one of them. Resolve arrives when the holder is shot at — that is what buys the second rung. Whether the level actually follows depends on whether the holder still has the ships, mines and coastal missiles to enforce it.

100% 98 / 98 Of the wars that close it, the holder had been struck
94.9% 93 / 98 Of those, the strait reached a partial blockade

Both terms hold. When this strait closes at all, the holder has already been struck and still has the means to act on it — which is why almost every closure here is a blockade rather than a warning.

Who loses their sea lane

Share of all simulated wars in which this state is cut off by a partial blockade or worse.

🇫🇷 France 2.15%
🇬🇧 United Kingdom 2.15%
🇮🇹 Italy 2.15%
🇩🇪 Germany 2.15%
🇳🇱 Netherlands 2.15%

The wars that close it

Opening moves that most often end with this strait shut. Click one to run it.

🇷🇺 Russia → 🇮🇱 Israel40/40 wars 🇮🇱 Israel → 🇷🇺 Russia40/40 wars 🇮🇱 Israel → 🇬🇧 United Kingdom7/40 wars 🇮🇳 India → 🇷🇺 Russia3/40 wars 🇮🇱 Israel → 🇵🇰 Pakistan2/40 wars
Run a war that closes it

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