Sir Keir Starmer is set to address a summit in London to crack down on illegal migration and call for greater unity among nations to combat people smuggling. The UK prime minister will emphasize the need for countries to work together to stop people smuggling gangs, similar to their cooperation on terrorism. The summit will also announce a £33m investment to disrupt people-smuggling networks and increase prosecutions. The Home Office expects the summit to deliver concrete outcomes for nations across Europe, Asia, the Middle East, Africa, and North America.