Brigadier General Diana M. Holland graduated from the United States Military Academy and was commissioned a Second Lieutenant in the Corps of Engineers in 1990.
Brigadier General Holland’s military service began in Germany where she served as a vertical construction platoon leader in the 79th Engineer Combat Battalion (Heavy), and as a company executive officer and battalion assistant operations officer in the 94th Engineer Combat Battalion (Heavy). Upon returning to the United States, BG Holland was assigned to the 30th Engineer Battalion (Topographic), 20th Engineer Brigade, at Fort Bragg, North Carolina and served as the battalion logistics officer and then as the commander of Headquarters and Headquarters Company.
Following company command, BG Holland earned a Master of Arts degree at Duke University en route to a teaching assignment at the United States Military Academy. She then attended the Army Command and General Staff College and the School of Advanced Military Studies (SAMS) where she earned a Master of Military Arts and Sciences degree.
She was assigned to the 3rd Infantry Division in July 2004, and deployed to Operation Iraqi Freedom 3 serving as a division plans officer and then as the operations officer in the 92nd Engineer Combat Battalion (Heavy). Upon return from Iraq, BG Holland served as a plans officer in the Operations Directorate, United States Central Command at MacDill Air Force Base in Tampa, Florida.
Brigadier General Holland commanded the 92nd Engineer Battalion (Black Diamonds) from July 2008 to June 2011. She deployed with Task Force Diamond to eastern Afghanistan from May 2010 to April 2011. After relinquishing command, BG Holland was a United States Army War College Fellow at Georgetown University.
In 2012, BG Holland assumed command of the 130th Engineer Brigade at Schofield Barracks, Hawaii. The following year, she deployed with the Brigade Headquarters to Bagram Airfield, Afghanistan where the unit served as the Theater Engineer Brigade, Joint Task Force Sapper. The Brigade redeployed to Schofield Barracks in June 2014 and Brigadier General Holland relinquished command in July. During 2015, BG Holland served as executive officer to the Director of the Army Staff at the Pentagon. Most recently, BG Holland was assigned as the Deputy Commanding General for Support, 10th Mountain Division (LI) at Fort Drum, New York, and deployed to Afghanistan in support of Operation Freedom’s Sentinel.
Brigadier General Holland’s awards and decorations include the Legion of Merit (w/OLC), Bronze Star (w/2 OLC), the Defense Meritorious Service Medal, the Meritorious Service Medal (w/4 OLC), the Combat Action Badge, the Senior Parachutist Badge, the German Parachutist Badge and the Silver Order of the de Fleury Medal.