Oscar-winner Morgan Freeman turned down a scholarship to study drama at university in favour of joining the US Air Force. Photo: Morgan Freeman
Adam Driver as a US Marine in 2002. Injuries he sustained in a car accident meant he was medically discharged even before deployment. Photo: Marine Corps, Reuters
Bollywood actor Bikramjeet Kanwarpal followed his father into the Indian Army. Photo: @Bikramjeet Kanwarpal / Facebook
Britain's Prince Harry in Afghanistan, where he served two tours in 2007 and 2012. Reuters
Korean actor Song Joong-ki conducted reconnaissance missions along the DMZ during his mandatory military service. Getty Images
Grammy-winning rapper Ice-T joined the US Army aged 19 and was stationed in Hawaii, where he discovered his love for music. Reuters
Oscar-winning 'It's a Wonderful Life' actor James Stewart flew 20 combat missions during the Second World War and was awarded the French honour of the Croix de Guerre. Photo: US Air Force, RKO Radio Pictures
'The Hangover' actor Rob Riggle served 23 years in the US Marine Corps. Photos: @Rob Riggle / Facebook, 20th Century Fox
South Korean model and actor Lee Jong-suk worked as a public service officer during his mandatory military service. Photo: EPA
British actor Christopher Lee spent the latter part of 1945 tracking down Nazi war criminals after serving with the Royal Air Force. Getty Images
Oscar-winner Morgan Freeman turned down a scholarship to study drama at university in favour of joining the US Air Force. Photo: Morgan Freeman
Adam Driver as a US Marine in 2002. Injuries he sustained in a car accident meant he was medically discharged even before deployment. Photo: Marine Corps, Reuters
Bollywood actor Bikramjeet Kanwarpal followed his father into the Indian Army. Photo: @Bikramjeet Kanwarpal / Facebook
Britain's Prince Harry in Afghanistan, where he served two tours in 2007 and 2012. Reuters
Korean actor Song Joong-ki conducted reconnaissance missions along the DMZ during his mandatory military service. Getty Images
Grammy-winning rapper Ice-T joined the US Army aged 19 and was stationed in Hawaii, where he discovered his love for music. Reuters
Oscar-winning 'It's a Wonderful Life' actor James Stewart flew 20 combat missions during the Second World War and was awarded the French honour of the Croix de Guerre. Photo: US Air Force, RKO Radio Pictures
'The Hangover' actor Rob Riggle served 23 years in the US Marine Corps. Photos: @Rob Riggle / Facebook, 20th Century Fox
South Korean model and actor Lee Jong-suk worked as a public service officer during his mandatory military service. Photo: EPA
British actor Christopher Lee spent the latter part of 1945 tracking down Nazi war criminals after serving with the Royal Air Force. Getty Images
Oscar-winner Morgan Freeman turned down a scholarship to study drama at university in favour of joining the US Air Force. Photo: Morgan Freeman