TIME Photo Happy Birthday to David Douglas Duncan, who turns 100 today. His friends and colleagues share their best wishes with TIME LightBox: http://ti.me/ddd100 (Photograph David Douglas Duncan—The LIFE Picture Collection/Getty Images)

Life.com Few people have lived as long, as varied and as complete a life as David Douglas Duncan.

Life.com David Douglas Duncan turns 100-years-old today.

Life.com David Douglas Duncan was born on this day in 1916.

TIME Photo Happy Birthday to David Douglas Duncan, who turns 100 today. His friends and colleagues share their best wishes with TIME LightBox: http://ti.me/ddd100 (Photograph David Douglas Duncan—The LIFE Picture Collection/Getty Images)

Life.com David Douglas Duncan's goal: To “show something of what a man endures when his country decides to go to war.” http://ti.me/1813MBx

Life.com Though David Douglas Duncan is best known as a war photographer, he shot over 10,000 photos of his close friend Pablo Picasso. See more photos from his new book, "My 20th Century": http://ti.me/1bcDfmy (David Douglas Duncan)

Life.com A new book released today, "My 20th Century," compiles some of the greatest work by David Douglas Duncan, whom LIFE called "perhaps the best war photographer since Matthew Brady." (David Douglas Duncan)

TIME Photo David Douglas Duncan is, without doubt, one of the 20th Century's best photographers. Today, he looks back at his impressive career: http://ti.me/1CrEw5b (Photo of Pablo Picasso in the bathtub: Villa la Californie, Cannes France. February 8, 1956. � Read more ... � David Douglas Duncan)

Life.com Happy birthday to LIFE photographer David Douglas Duncan, who fearlessly captured the brutal reality of the Korean War. See more of Duncan's photos from Korea: http://ti.me/1813MBx (David Douglas Duncan—Life Magazine)