Army
Firepower! 300 Years Of The Royal Artillery
The Queen has helped open a new chapter in the Royal Artillery's 300-year-long history, marking its special anniversary at a review.
Her Majesty has been the regiment's Captain-General since 1952.
And as Forces Network's Carla Prater reports, she arrived in style (see above)...
Tim Cooper, meanwhile, took a trip to Woolwich to find out about the history of the unit.