This is a 636 piece jigsaw puzzle that features a magnificent panoramic display of the unforgettable dambusters a special edition manufactured by gibsons this puzzle commemorates the 70th anniversary of the historic war time event of may 16th 17th 1943 operation chastise was an attack by the royal air force on german dams orchestrated to create great damage by the destruction of the dams but also used later as a propaganda tool to raise morale among the british troops many survivors from