The emblem tattooed on his left elbow is the 'Titan 2' symbol for his platoon, where he fought in Afghanistan. The former Marine now volunteers and competes in the para-Olympics.

The tattoo, according to Gaertner, is actually a “Titan 2” symbol for his platoon when he served in Afghanistan. “The writing on his right arm is the Spartan Creed which is about protecting ...

The app allows the use to build the proper NATO standard graphic symbol, for example a friendly infantry platoon, label it, and then place it on the map.