Everything you need to understand or teach The Cardinal of the Kremlin by Tom Clancy.
As in The Hunt for Red October (1984, see separate entry), the theme of betrayal is an important one in The Cardinal of the Kremlin. Like the Soviet submarine captain Marko Ramius, Col. Mikhail Semyonovich Filitov has chosen to betray his country. Unlike those of Ramius, Filitov's motivations are vague and confused. He is angered by his wife's death, but he partly blames himself for it, just as he sees himself as somehow responsible...