Britain's Prince William and Catherine, Duchess of Cambridge visit 282 East Ham Squadron, Cornwell VC Cadet Centre, Vicarage Lane, in London, Britain April 21, 2021. Ian Vogler/Pool via REUTERS
Britain's Prince William and Catherine, Duchess of Cambridge wore all black as they visited the 282 East Ham Squadron in east London. Reuters.

William and Kate meet air cadets in first public engagement since Prince Philip's funeral