Members of the Hereford-based SAS are to reveal their faces for a series of television adverts in a bid to recruit more people in the Army.
It is the first time in 60 years that commanders have allowed troops under their control to get involved in a recruitment campaign.
Members of the Joint Special Forces Support Group will appear on posters and on television in the £4m appeal.
On average, only 10 out of 125 people pass the SAS selection process.
In particular, the Parachute regiment needs more recruits.
It is thought there has been a reduction in recruits since the deaths of four recruits at the Deepcut army barracks in Surrey and the war in Iraq.
The organisation was founded in 1941 and it is based at Credenhill, Herefordshire.