"Iran's Parliament Speaker Mohammad Baqer Qalibaf wrote on X that critical infrastructure and energy facilities in the Middle East could be "irreversibly destroyed" should Iranian power plants be attacked."

No power, no desalinisation, no trade, no oil production.

"Who hurts most":
https://www.reuters.com/business/energy/who-hurts-most-iran-war-hits-global-economy-2026-03-20/
"THE FRAGILE FEW
There are also a handful of countries that look particularly vulnerable having all recently been through - or had very close shaves with - full-blown economic crises.

SRI LANKA has just made every Wednesday a public holiday for state-sector workers in a bid to cap energy costs. ​Schools, universities and public institutions are being shut, non-essential public transport suspended and drivers must now register for a National Fuel Pass restricting fuel purchases.

#PAKISTAN ​was teetering on the brink ⁠of crisis two years ago and has ramped up its petrol prices and closed its schools for two weeks too. Government departments are having their fuel allowances halved, are now banned from buying new air conditioners and furniture, and have been ordered to take a chunk of their vehicles off the road."