Prince Philip carries out final royal engagement before retirement

The Duke of Edinburgh has attended his final official engagement, but the palace has hinted it won't necessarily be the last time we see him on royal duty.Prince Philip, who turned 96 in June, was at a parade at Buckingham Palace to mark the finale of the Royal Marines 1664 Global Challenge.Buckingham Palace announced in May the Duke would not be taking on any more solo engagements from autumn this year.