SAS commanders are calling for soldiers in regular units to take on the grueling challenge of SAS training and selection. This is part of an attempt to boost their Special Forces numbers while the Army is also looking for more recruits. Veterans up to the age of 57 are being asked to re-enlist, even if they were dismissed on disciplinary grounds or medically discharged. Their Army numbers have been short of their normal goal for years, currently being 5,000 under their preferred target of 82,000 regular soldiers. The Ministry of Defense has not released how many special operations forces troops there are, but many are engaged in Iraq, Syria, and other hotspots for terrorism.