On a red disc 2 1/2 inches (6.35cm) in diameter an ax stuck in a half split rail - ax and rail white all enclosed with 1/8 inch (.32 cm) (.32cm) Army green border.
The 84th Division, once known as the "Lincoln Division," was organized with personnel from Indiana, Kentucky and Illinois, states with which President Abraham Lincoln was associated and where he split rails for fences in his youth.
The shoulder sleeve insignia was originally approved for the 84th Division on 16 February 1924. It was redesignated for the 84th Airborne Division and amended to add the Airborne tab on 13 February 1951. On 6 September 1960, the insignia was amended to delete the airborne tab and redesignated for the 84th Division (Training). It was amended to revise the description and symbolism on 6 December 1998. The insignia was redesignated effective 17 October 2005, for the 84th United States Army Reserve Readiness Training Command, as a challenge and a trust. It was redesignated effective 17 October 2007, for the 84th Training Command (Leader Readiness).