In this week's update, we examine the UK’s Joint Terrorism Analysis Centre raising the national terrorism threat level from SUBSTANTIAL to SEVERE, following a vicious antisemitic stabbing in London’s Golders Green Jewish community. The US Embassy in London followed up with a security alert for Americans in the country. We break down the attack, Ashab al-Yamin’s first claim of responsibility for lethal strikes on individuals rather than property, and the escalation of this Iranian proxy front’s sustained low-tech terror campaign. This is not random street crime; it is state-sponsored Islamist proxy warfare, with Tehran outsourcing violence to radicalized cutouts. The campaign is active, ongoing, and now more lethal—copycats and further escalation are expected. An expanded written version of this report can be found in this week’s Threat Journal newsletter. You can subscribe for free by visiting www.ThreatJournal.com. A link to this issue will be sent to you immediately via email. AlertsUSA Homepage http://www.AlertsUSA.com – (Homeland Security Alerts for Mobile Devices) AlertsUSA on Facebook https://www.facebook.com/alertsusa AlertsUSA on Twitter https://twitter.com/alertsusa Threat Journal on Twitter https://twitter.com/threatjournal Threat Journal Homepage https://www.ThreatJournal.com