Word of Honour by Nelson DeMille
Ben Tyson is a brilliant corporate executive, an honest, handsome, family man, admired by men and desired by women. Years ago Ben Tyson was a lieutenant in war-torn Vietnam. There, in 1968, the men under his command committed a murderous atrocity - and swore never to tell the world what they had done. But was their word their bond? The press, army justice, and the events Ben Tyson tried to forget have caught up with him. And now his family, his career and his personal sense of honour hang precariously in the balance.