Geneva saw significant protests ahead of the G7 summit, drawing an estimated 20,000 participants. While the majority of demonstrators remained peaceful, a militant faction known as the "Black Bloc" engaged in destructive acts, including arson and vandalism targeting banks. Police responded with tear gas to disperse protesters who were throwing stones. The violence led to arrests and prompted increased security measures as the summit prepares to move to France. Organizers had anticipated large crowds but were unable to prevent the escalation of tensions. The incidents occurred shortly before the anticipated arrival of former US President Donald Trump.