national memorial arboretum. and to cardiff, the welsh national war memorial there. so the two minutes silence as we remember our war dead. a survey of nhs leaders in england has found that staff shortages are putting patient care at risk, and pressure on the service is now at unsustainable levels. the survey was carried out by the nhs confederation, which represents the healthcare system. the warning comes as paramedics across the uk say lives are under threat because patients are facing unacceptably long waits for ambulances. whistleblowers have told bbc news that some ambulance services are at breaking point. here's our health correspondent, sophie hutchinson. across the length and the breadth of the uk, ambulances are queuing. unable to hand over the sick and injured patients they have on board because hospitals have no room. and ambulances stuck in queues aren't available to attend other emergencies, leaving patients in need, waiting at home. i called an ambulance at 11:50am. and they said that they were going to send help asap. just over two weeks ago, christin