The Battle for Mametz Wood is normally associated with the endeavours of the 38th Welsh Division and was the first of those great battles to secure possession of the woodlands of the Somme. The author looks at events after the 1st July, but also relates the story of the 17th Northern Division who attacked the quadrangle, a defensive system guarding the western approaches to the wood. Also related is the demise of both generals commanding these divisions who were sent home.