King Charles III led nationwide commemorations on Monday marking the 20th anniversary of the 7 July 2005 terrorist attacks that killed 52 people and wounded more than 700 on London’s transport network. In a statement issued ahead of the events, the monarch praised the “extraordinary courage and compassion” shown in the aftermath of the bombings and urged Britons to stand united against those who seek to divide the country. A minute’s silence was observed at 08:49 BST—the exact time the first three bombs exploded on Underground trains—after which the King was represented by the Duke and Duchess of Edinburgh at a memorial service in St Paul’s Cathedral. Prime Minister Keir Starmer and Mayor Sadiq Khan laid wreaths at the Hyde Park 7/7 Memorial alongside emergency-service chiefs and survivors, while the Prince of Wales met families of the victims at the site. The coordinated suicide attacks were carried out by four British men inspired by al-Qaida. They detonated rucksack bombs on Circle and Piccadilly line trains departing King’s Cross before a fourth device exploded nearly an hour later on a double-decker bus in Tavistock Square, in what remains the deadliest terrorist incident on UK soil since World War II. Metropolitan Police Commissioner Sir Mark Rowley said security agencies have made “massive changes” since 2005 but warned that Islamist extremism continues to pose the principal threat, followed by far-right violence. Survivors and some bereaved families renewed calls for a public inquiry to address unanswered questions about how the bombers evaded detection. Home Secretary Yvette Cooper pledged to “relentlessly confront” evolving extremist risks.