"The US Army in WW2" "Seizure of the Gilberts and Marshalls" These are genuine Army volumes with specific photos of the operations. I see a few carbines being used by Marines and Army personnel. No bayonet lugs and no adjustable sights indicated. This book covers the taking of Makin, Eniwetok, Kwajalein, Tarawa (Betio) and lesser islands. Later operations such as Iwo Jima, appear to show a much larger percentage of carbines.