In March 2009, Johnson joined an Army Reserve unit in Seagoville, Texas, and served four and a half years. He was sent to Afghanistan in 2013 and served eight months with the 420th Engineer Brigade.
In March 2009, Johnson joined an Army Reserve unit in Seagoville, Texas, and served four and a half years. He was sent to Afghanistan in 2013 and served eight months with the 420th Engineer Brigade.