He was subsequently transferred to the 22nd Infantry Regiment, then stationed at Fort Bliss, Texas, where he participated in the border patrol duty during the Pancho Villa Expedition.
He returned to the United States in August 1917, four months after the American entry into World War I, and served (now with the rank of captain) with the 58th Infantry Regiment in Pennsylvania and North Carolina.
In July 1918, his regiment was transferred to the Western Front to serve as part of the American Expeditionary Force (AEF), commanded by General John J. Pershing, who had led the Pancho Villa Expedition.
However, he never led the corps in combat as, in November 1944, Terrell was ordered to command the Infantry Advanced Replacement Training Center until the end of the war.
[5]Major General Henry Terrell Jr. retired from the army on April 30, 1946, almost a year after the end of World War II in Europe, and died on October 3, 1971, in San Antonio, Texas, his birthplace.