From the back cover:

Few branches of the German armed forces were represented on so many fronts as the mountain infantrymen, or Gebirgstruppen. From the Blitzkrieg campaigns of 1940, through the invasions of the Balkans and Russia and the North African campaign, to the defence of the Reich 1944-45, the Gebirgsjäger earned a reputation for reliability and courage. Typically each trooper was a supremely fit individual: the need to cover difficult terrain in full kit, without the back-up of a motorised baggage train, demanded this. This new volume examines the recruitment, training, and combat experiences of the common Gebirgsjäger.