Col. Gary Cooper, center left, and Lt. Col. Nikki Davis, far left, are pictured in an Army Medical Logistics Command command group photo in 2023. Cooper, commander of the U.S. Army Materiel Agency, served as interim AMLC commander for several months, while Davis, USAMMA deputy commander, assumed interim command of USAMMA in Cooper’s stead. USAMMA is one of three direct reporting units to AMLC.

Col. Gary Cooper speaks during an Army Medical Logistics Command awards ceremony April 19, 2023, at Fort Detrick, Maryland.

Lt. Col. Nikki Davis, right, deputy commander of the U.S. Army Medical Materiel Agency, helps collect leaves during a fall cleanup event Nov. 15, 2022, at Fort Detrick, Maryland.

Col. Gary Cooper is the commander of the U.S. Army Medical Materiel Agency.

Lt. Col. Nikki Davis is the deputy commander of the U.S. Army Medical Materiel Agency.

Then-Maj. Nikki Davis speaks during an event at Fort Detrick, Maryland, in December 2018. Davis’ tenure as deputy commander of the U.S. Army Medical Materiel Agency is her second stint with the organization. (U.S. Army photo by Ellen Crown)