The Wellington Rifles were mobilized for service in the Spanish–American War on 3 June 1898 as part of the 2nd Massachusetts Volunteer Infantry Regiment.

[3] In March 1917 the Wellingtons were designated as Company H, 104th Infantry Regiment of the 26th Yankee Division for service in the First World War.

In France the company served in all of campaigns of the Yankee Division and was awarded the French Croix de Guerre with Gilt Star for the heroic fight at Apremont on 10–13 April 1918.

The year of training ended in December 1941 but the company's service continued after the Japanese attack on Pearl Harbor brought the United States into the Second World War.

In September 2005, HHC mobilized as the command element of JTF Yankee for rescue and security operations in New Orleans following Hurricane Katrina.

On 17 June 2007, HHC 1-181 Infantry was mobilized for one year duty at Camp Cropper in Baghdad, Iraq as the HQ Rear Area Operations Center (RAOC).