The funeral will also prompt what is likely to be the biggest single security operation the U.K. has ever staged with as many as 10,000 police officers deployed
The death of Queen Elizabeth at the age of 96 invoked Operation London Bridge, a complex series of coordinated events meticulously planned for decades. The 10-day plan commenced Friday with a gun salute to the dead Queen and the new King’s televised address to the nation. The first day of the operation is known as D+0 with the funeral taking place on D+10, making the date of the state funeral Sept. 19.
According to briefings, the body of the Queen will be flown from Edinburgh to London on Tuesday evening, known as D+4. The body will then lie in state, an operation with its own name, Marquee. There are currently more than 700 members alone of the Privy Council, the formal body of advisers to the monarch.