Michelle Obama is marking the second anniversary of her "Let's Move" campaign against childhood obesity.
The first lady plans a three-day national tour beginning Thursday. It will include stops in Iowa, Arkansas, Texas and Florida.
Her first stop is an arena in Des Moines, Iowa, where more than 10,000 children will do some physical activity.
She'll wind up at Disney World in Orlando, where Disney stars, athletes and local kids will all come together to get moving. Along the way, the first lady will highlight roles that churches, restaurants, schools, businesses, families and the military can play in fighting obesity.
The first lady's goal is to solve the problem of childhood obesity within a generation.