99th Infantry Division

99th Infantry Division
Unit name	99th Infantry Division
Caption	Shoulder sleeve insignia
Dates	1942–1945; 1947–1959
Country	United States
Branch	United States Army
Type	Infantry
Role	Infantry operations
Size	Division
Garrison	Fort Riley
Nickname	Checkerboard Division
Motto	"Let's Go"

99th Infantry Division was a formation of the United States Army raised during World War II and later reconstituted during the early Cold War. Activated to meet mobilization requirements following the Attack on Pearl Harbor, the division trained on the United States home front and fought in the European Theater of Operations, participating in several campaigns and receiving multiple awards. Postwar, the division was redesignated and served in reserve and training roles amid tensions between NATO and the Warsaw Pact.

History

The division was constituted in the Army of the United States in 1942 and organized at Fort Riley in Kansas during the rapid expansion of the United States Armed Forces after the United States declaration of war on Japan. During its formation the unit underwent extensive training at stateside camps such as Camp Maxey and maneuver areas used by Third United States Army formations. After deployment to the European theatre of World War II, the division was assigned to First Army and later to corps under the command of various army groups; it returned to the United States after VE Day and was inactivated during the post–World War II demobilization before later reactivation in the Army Reserve system.

Organization and Structure

The division followed the standardized triangular infantry division organization adopted by the United States Army in 1942, composed of three infantry regiments, divisional artillery, engineer, reconnaissance, medical, and support units. Key subordinate elements included regiments numbered in the division’s order of battle, an artillery brigade equipped with 105 mm howitzer and 155 mm howitzer battalions, a divisional Engineer Combat Battalion, a Medical Battalion, and a Signal Company providing communications for corps-level operations. The division’s logistical tail worked with Services of Supply elements to sustain operations during offensive and defensive campaigns in Western Europe.

World War II Service

The division arrived in France and entered combat during the later phases of the Rhineland Campaign and the push into the Siegfried Line. It conducted offensive and defensive operations in coordination with formations from V Corps, VIII Corps, and other units of United States Army Europe. During the winter operations it was engaged in defensive actions associated with the Battle of the Bulge period, holding ground and conducting counterattacks to secure lines of communication with neighboring divisions. In spring 1945 the division participated in the final offensives into Germany, crossing rivers, securing towns, and assisting in the liberation of civilian populations and the processing of prisoners of war.

Postwar Activity and Cold War Era

Following inactivation after Victory in Europe Day, the division was reconstituted in the late 1940s as part of the United States Army Reserve force structure amidst reorganization under the National Security Act of 1947. During the early Cold War the division’s lineage was maintained through reserve training units and periodic mobilization exercises coordinated with Continental Army Command and allied planning with NATO partners. Elements were assigned to training roles at installations such as Fort Riley and participated in large-scale maneuvers and readiness inspections during crises including the Korean War mobilizations and later contingency planning throughout the 1950s before final inactivation or redesignation under Army Reserve reforms.

Insignia and Traditions

The division’s shoulder sleeve insignia used a distinctive checkerboard pattern which inspired its nickname and esprit de corps, reflecting influence from heraldic practices used across United States Army units. Traditions included unit-specific ceremonies tied to campaign participation credit for the Rhineland Campaign and other engagements, regimental colors maintained according to United States Army Institute of Heraldry standards, and unit marches and mottos common among infantry formations of the era. Commemorative reunions and veterans’ associations preserved the division’s history alongside memorials in communities such as those near former home station installations.

Commanders

The division was led by a series of division commanders drawn from experienced infantry officers promoted during wartime; these commanders had prior service with corps and army headquarters and later held posts in reserve commands or within Department of the Army staff. Leadership exchanges occurred in theater as operational demands required reassignments to corps commands or higher echelon staff roles during World War II and the early Cold War period.

Notable Engagements and Decorations

The division received campaign streamers for participation in the Rhineland Campaign, actions connected to the Ardennes counteroffensive, and final operations in central Germany. Individual and unit decorations awarded to soldiers and subunits included presidential unit citations, Bronze Star Medals, Silver Stars, and foreign awards issued by liberated governments for battlefield actions. Specific engagements saw intense infantry combat, urban clearing operations, river crossings, and coordination with United States Army Air Forces tactical air support to accomplish assigned objectives.

Category:Infantry divisions of the United States Army Category:United States Army divisions of World War II