Let’s be honest here, warships won’t help to reopen the strait. The danger is coming from Iranian rockets being shot from the coast at ships. Warships in the strait are sitting ducks - we’ve all read about all those military exercises showing that. The only way to reopen the strait is to somehow degrade Iranian military capability at the coastline. And that is a long coastline with a lot of hiding spots which were prepared for exactly this scenario by the Iranians for years. So no European warship showing up there will have any effect except being sunk.

Another way to reopen the straits is for the U.S. to stop bombing Iran.