What did your family do in both world wars?

My Great Great Grandad fought in Bulgaria in WW1 (William Watkins) His 3 sons fought in ww2. My Great Grandad (Raymond Watkins) was on the submarines (HMS Seneschal), (HMS Truant) and (HMS Satyr). His brother (Jack Watkins) got malaria in the brain and died in some eastern country (Army) and his brother (Reg Watkins) was in the RAF