This was 3 separate books, the first one about the Marines in island ground war in the Pacific, and the other 2 were Army Air Corps in the European Theater.
I found the first one most interesting, being memories of Marines on the ground with intense landings and close combat. The air war, though told through the eyes of different men, gave less sense of what was happening beyond flak piercing the plane.
These were the memories of men who were roughly my father's age. I was born 2 months after Pearl Harbor, and I actually have a few small memories of the home front near the end of the war, letters received from family members, the Star Spangled Banner being played at the top of each hour on the radio. These books fill in details that my family would never have discussed in front of me when I was a child. I enjoyed reading these.