71-year-old artist Luong Anh Dung has spent 50 years drawing propaganda - and he's proud of it. Working for the Hanoi government, he painted hundreds of posters in the service of his socialist homeland. Dung's teacher, 86-year-old Le Lam, studied propaganda art in the USSR. Transplanted to Vietnam, this visually striking art form evolved into its own unique style. Both Dung and Lam served on the frontlines during the Vietnam War, where they created patriotic works from the battlefield. Explore the extraordinary changes Vietnam has undergone through the eyes of these 2 elderly artists - and their eye-catching creations.