Iran launched unsuccessful attack on UK's Diego Garcia

https://www.bbc.com/news/articles/c5yljdgwppzo

Foreign secretary denounces 'reckless Iran threats' after missiles fired at Diego Garcia

Iran reportedly fired two ballistic missiles at Indian Ocean base, but neither reached the target.

The fact that it was unsuccessful does not make it any less worrying. Iran was a regional problem before the war, but this new escalation shows they’re a threat to the entire world. They might have previously had a chance at a Vietnam or perhaps a Korea-style stalemate

Are you implying other countries have to join in?

Iran is only a threat because the US and Israel decided it was time to murder some Iranians.

The US and Israel are more of a threat to the entire world.