Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Worldwar: Tilting the Balance is an alternate history and science fiction novel by Harry Turtledove. It is the second novel of the Worldwar series, as well as the second installment in the Tosev timeline.The major world powers struggle to develop the first human atomic bombs with material taken from the invading aliens known as The Race.As the year 1943 begins, the Race attempts to consolidate its hold over Latin America, Africa, and Australia while engaged in a fierce struggle with the free nations of the world: the United States, the United Kingdom, the Soviet Union, Japan, and the Greater German Reich.