Dillard completed the National War College at Fort Lesley J. McNair, District of Columbia that year.

[1] Dillard began Basic Training at Fort McClellan, Alabama near the end of World War II, in June 1945.

[6] Lieutenant Dillard deployed with the 24th Infantry Regiment to the Republic of Korea as part of the response to North Korean aggression.

[7] On July 21, 1950, Dillard's platoon was the lead element as the 3rd Battalion, 24th Infantry — supported by other elements of the 24th Regimental Combat Team — conducted the first major offensive mission by the 25th Infantry Division with its recapture of the vital road junction town of Yecheon driving out the North Korean defenders, and repulsing a North Korean attempts to retake the town.

A thorough accounting of Dillard's exploits are described in Lieutenant Colonel (Retired) Bradley Biggs' October 2003 Military Review article, "The 'Deuce-Four' in Korea."

A veteran of the 555th Parachute Infantry Battalion (United States), Colonel Biggs described General Dillard as "a superb officer" and commended him for his use of surprise and speed during the battle of Yecheon.

[10] Following his year in combat and participation in five campaigns, Captain Dillard returned to the United States and attended the Infantry Officers Advanced Course where he graduated 6th in his class.

When the 4th Infantry Division was inactivated, General Dillard became the Chief, Map Reading Committee at the Seventh Army Noncommissioned Officers Academy in Munich, Germany.

Following his Germany assignment, Major Dillard graduated from the Army Command and General Staff College (CGSC), where he was one of only three Black officers in his class, in 1958.

After CGSC, he completed his bachelor's degree at the University of Omaha under the Army's Bootstrap Program, which leveraged his earlier studies at Tuskegee Institute.

Dillard became a valued coach and mentor to Liberian officers and assisted them in integrating advanced staff techniques and processes into their planning.

While assigned as the PSA for Advisory Team 41, Military Region II, his success was documented in the Washington Post as the example of how to build a close relationship with the Province Chief, Nguyen Hop Doan, and his civilian deputy, Ken Lyvers, a United States Agency for International Development employee.

Together, they grew the Provincial and Popular Forces to defend the Province and organized the villages and hamlets — Vietnamese and Montagnard — to feed and protect themselves.

As part of Operation STEADFAST, General Dillard served as first Deputy Chief of Staff, Intelligence (DCSINT) for the new United States Army Forces Command (FORSCOM) at Fort McPherson, Georgia.

General Dillard's military awards include the Distinguished Service Medal with one Oak Leaf Cluster, Silver Star, Legion of Merit with two Oak Leaf Clusters, Bronze Star with one Oak Leaf Cluster and "V" Device, Purple Heart, Air Medal, Combat Infantryman's Badge with Star (two awards), Army Staff Identification Badge, and Vietnam Distinguished Service Order (1st and 2nd Class).

His efforts were also described in a November 1989 Los Angeles Times article by John Broder "COLUMN ONE: War and Black GIs' Memories."

The Documentary "Battlefield Diaries – Episode 5: Last of the Buffalo Soldiers," which was released on December 1, 2006, attempted to tell the story of the last segregated regiment—the 24th Infantry Regiment—in U.S. military history.

General Dillard's narrative in the documentary highlighted his experiences with the regiment from 1950 to 1951, and addressed the criticism levied on the "Deuce Four" for running or backing off.

The regulation pays tribute to the contributions of General Dillard as the first FORSCOM G2, and his impact on the Army and its Military Intelligence Corps.

It recognizes the most outstanding military intelligence company-size unit assigned to a Brigade Combat Team in FORSCOM each year.

At the dedication ceremony, Congresswoman Deborah A. Dingell (D-MI), representing the sixth district, highlighted the importance of the clinic and the commitment of the VA and her office to getting veterans the health care they need and deserve.