More than 2,500 troops - sailors, soldiers and Royal Air Force personnel from nearly all areas of the Armed Forces - will parade before the Queen and the Duke of Edinburgh through Windsor today. They will be joined by a tri-Service Guard of Honour for Her Majesty, and six military bands.
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The London mayor publicly backed defeated candidate Owen Smith in the contest which saw Mr Corbyn re-elected party leader.
Police described it as a "growing sink hole" and it's unclear when the road will reopen.