What spin is Tim O'Brien putting on the war in the chapter "Spin?"

In the chapter "Spin," O'Brien is putting a few different "spins" on the Vietnam War, and war in general. The chapter begins with the assertions that war has a sweet side to it too – it's not all violence and death. O'Brien launches into a series of stories meant to demonstrate this sweeter side of war: Kiowa teaches a rain dance to Rat Kiely and Dave Jensen, Mitchell Saunders mails his body lice to the Ohio draft board, Ted Lavender even adopts a puppy! Of course, then Azar strapped it to a mine and blows it up. Even though O'Brien is putting a sweet spin on the war, the horror is still at the edges. 

Another insight about the war in this chapter is when O'Brien compares it to the checkers games that Norman Bowker and Henry Dobbins play every night. O'Brien observes that checkers is orderly and relaxing, with two armies and clear-cut rules. Real war, however, is the opposite of that. O'Brien shows readers this through his disjointed story telling, in "Spin" and in the rest of the novel, with moments of great kindness and beauty juxtaposed with moments of horror and grisly acts.