by Chris Bodenner
A soldier of the US Army’s 23rd Chemical Battalion wears protective gear to give a demonstration of their equipment during a ceremony to recognise their official return to the 2nd Infantry Division located in South Korea, at Camp Stanley in Uijeongbu, north of Seoul, on April 4, 2013. The 23rd Chemical Battalion left South Korea in 2004 but the battalion with about 250 soldiers returned to the South in January 2013. The battalion will provide nuclear, biological and chemical detection, equipment decontamination and consequence management assistance to support US and South Korean military forces. By Jung Yeon/AFP/Getty Images.
