These maps are from Battles — How They Are Won, by Mary Elting and Robert Weaver, published by Doubleday, Doran, and Company in 1944. I remember reading it as a child, and recently rediscovered it.

The book is an overview of tactics and strategy for young people, with examples drawn from World War II, not yet finished at the time of printing.

Click to open a larger image:

This defense of the Mediterranean campaign makes a few suspect assertions (“Our troops became seasoned fighters,” for instance, is a classic post-facto justification for military futility):