"39th Inf Bde
Arkansas Army National Guard
Worn from 24 September 1968 - Current"
źr: http://www.usarmypatches.com/
SYMBOLISM
"The Bowie knife alludes to the “The Bowie State” a nickname used for Arkansas, home station of the Brigade. The Bowie knife, a weapon used for close fighting and implying hand-to-hand combat, is also indicative of the aggressive spirit of the Infantry. The lozenge or diamond refers to the unique aspect of the state as having the only diamond field in North America."
żr: http://www.arkansas.gov/theproviders/39thpatch.html