Operation London Bridge is the codename for the plan for what happens when the Queen dies. Philip had the title of Duke of Edinburgh and the Forth Bridge is a

Operation London Bridge is the codename for the plan for what happens when the Queen dies. Philip had the title of Duke of Edinburgh and the Forth Bridge is a large bridge near Edinburgh. https://en.wikipedia.org/wiki/Operation_London_Bridge https://en.wikipedia.org/wiki/Operation_London_Bridge https://en.wikipedia.org/wiki/Forth_Bridge https://en.wikipedia.org/wiki/Forth_Bridge Edinburgh sits on the south side of the Firth of Forth: https://en.wikipedia.org/wiki/Firth_of_Forth https://en.wikipedia.org/wiki/Firth_of_Forth