I'm ABC global affairs editor Laura Tingle in Dubai. I'm giving you daily updates to help you quickly understand what's going on.
- In breaking news this morning, a seventh US soldier has died in the war, from wounds sustained during Iran's initial counter-attack a week ago.
- Meanwhile, Iran is in turmoil. Deep divisions between its government and military have been laid bare after its President apologised to Gulf neighbours for attacking them, only for the Revolutionary Guard to escalate those attacks within minutes. And while a new Supreme Leader is reported to have been chosen, his identity remains undisclosed.
- Gulf state patience with Iran is running out. Saudi Arabia has warned Tehran that continued strikes on the kingdom could force it to respond in kind. The UAE, more tersely, said it reserves the right to take "all necessary measures" to protect its sovereignty.
So, what's the fallout?
This dirty war is now also being fought over perhaps the most precious of commodities in such an arid region: water.
Over 400 desalination plants line the Persian Gulf. On Sunday, Iran struck a plant in Bahrain, cutting water supply — and separately, Iran's foreign minister said a US airstrike damaged an Iranian desalination plant on Qeshm Island.
But the story then got really complicated. Israeli media quoted Israeli sources as saying it had been the UAE that had struck the Iranian desalination plan — a hugely significant development as it would have been the first time a Gulf state directly attacked Iran.
UAE official Ali Rashid Al Nuaimi quickly responded, flatly calling the claim "fake news", adding: "When we do something, we have the courage to announce it."
A source close to the Emirates told The Jerusalem Post that the UAE was "struggling to understand Israeli conduct", and accused Israeli officials of leaking false reports about UAE actions. The leak was widely seen as an attempt by Israel to drag the UAE directly into the conflict.
Thanks for joining me. You can keep track of the latest updates from Iran and around the world throughout the day via our live blog.