Former British Prime Minister Boris Johnson joins thousands of people in London for a march against antisemitism, expressing solidarity with the Jewish community. The march is billed as the largest gathering against antisemitism in decades and features UK's Chief Rabbi Ephraim Mirvis and other senior government officials. Organizers wave Israeli and the UK's Union flags, holding placards with messages like "Never Again Is Now" and "Zero Tolerance for Antisemites." Tens of thousands also march in a pro-Palestinian rally calling for a permanent cease-fire in the Israel-Hamas war.