A new campaign to enlist newcomers to the Armed Forces' reserves launched in the capital today.
It's a renewed attempt to boost numbers in the Territorial Army after a sluggish start.
Defence Secretary Philip Hammond wants to expand its ranks by between 10 and 12 thousand by 2018.
Potential candidates, young and old, were invited to find out more and marvel at the display of military helicopters, weapons and a parachute jump at the event at Horse Guards Parade.
Mr Hammond said that London recruits formed an essential and celebrated part of the TA.