A framed poster on the wall of a kindergarten classroom shows bright-eyed children brandishing rifles and bayonets as they attack a hapless American soldier, his face bandaged and blood spurting from his mouth.

"We love playing military games knocking down the American bastards," reads the slogan printed across the top. Another poster depicts an American with a noose around his neck. "Let's wipe out the U.S. imperialists," it instructs.

For North Koreans, the systematic indoctrination of anti-Americanism starts as early as kindergarten and is as much a part of the curriculum as learning to count.

Toy pistols, rifles and tanks sit lined up in neat rows on shelves. The school principal pulls out a dummy of an American soldier with a beaked nose and straw-colored hair and explains that the students beat him with batons or pelt him with stones — a favorite schoolyard game, she says.

For a moment, she is sheepish as she takes three journalists from The Associated Press, including an American, past the anti-U.S. posters. But Yun Song Sil is not shy about the message.