Gilbert Morris 
Winds of Change (American Century Book #5) 

The close-knit Stuart clan becomes personally involved in WWII when several members of its younger generation go off to fight. Will and Clint are strongly rooted in their Christian heritage, but Adam’s life has been aimless and bitter. While he fights his toughest battle within himself, he endangers the men under his command. The three cousins’ military exploits take them from the Arkansas hills to the jungles of Guadalcanal, from Hollywood to the forests of Germany. The Stuarts at home lean heavily on faith and family as they pray for their sons. Will the men return safely to the women and families who love them?