What is the main conflict in Men of Men by Wilbur Smith?

Men of Men by Wilbur Smith is a story of greed, exploration, adventure and love. It is a gripping saga that follows the lives of the Ballantyne men and Zouga Ballantyne's unrelenting desire to make the wilds of northern Africa his home. In his pursuit of enough of a stake to enable him to settle, he loses his wife and almost loses his sons. He purchases two mines but gambles them away leaving the family penniless, but in the true spirit of adventure and determination, both sons find their own way to make their mark on the land. Ralph becomes successful operating the first and only reliable transport company in northern Africa, and Jordan becomes the right hand man to Cecil Rhodes, whose vision will earn millions and unite the many small holdings that make up the concessions of the wilderness.