Il Primo Ministro afferma che Regno Unito e Francia guideranno la missione per ripristinare il movimento marittimo nello Stretto di Hormuz

I think most of what this is gonna be is mine sweeping.

They will only deploy when there is an agreed ceasefire and or peace deal where the Iranians have agreed to reopen the Straits. The IRGC laid lots of sea mines from small boats and have no way of recovering them, many have probably drifted from the point they were laid and no one was keeping a proper record of where the actual edge of the minefields were.

The UK and France in particular are very good at mine detection and clearance and will take the lead on clearing the minefields, as well as providing an escort for shipping along with other nations.

They need to provide an escort to allow shipping companies to get insurance that doesn’t bankrupt them (if they can get any insurance in the first place). Once all the above is done then hopefully the straits can reopen fully to international shipping but it will take some time.