Photo: Richard Lane/Richard Lane Photography. Lawrence Dallaglio visits Combat Stress's Tyrwhitt House in Leatherhead, Surrey which is one of three residential centres for military veterans suffering from a psychological condition related to their Service career. Combat Stress is one of four military charities to benefit from the forthcoming London Wasps St GeorgeÕs Day Game against Bath at Twickenham Stadium on 23rd April 2011. It is the UKÕs leading military charity specialising in the care of Veterans' mental health. The charity cares for men and women who are suffering from depression, anxiety, a phobia or Post Traumatic Stress Disorder as a result of their time serving in the armed forces. 06/04/2011.