Most recently the Company B has served in Guantanamo Bay Cuba, in New Orleans following Hurricane Katrina, and in Afghanistan.
On July 12, the regiment was mustered into the United States service with under Major Charles Devens, Jr.
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.
On 15 October 2001 Company B, 1-181 Infantry was mobilized for one year duty at Fort Monmouth, New Jersey, providing base security in support of Operation Noble Eagle following the 9-11 attacks on the United States.
In September 2005, Company B mobilized as an element of Joint Task Force Yankee for rescue and security operations in New Orleans following Hurricane Katrina.
In August 2010, Company B 1-181 IN deployed for one year of service with the International Security Force in Afghanistan in support of Operation Enduring Freedom.
The company served with the 2nd Massachusetts Infantry in the Santiago (Cuba) Campaign fighting at El Caney and was mustered out of service on 3 November 1898.
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.
The 104th awarded the Croix de Guerre and Fourragere by France for actions in breaching the Siegfried Line.
In September 2005, Company B mobilized as an element of JTF Yankee for rescue and security operations in New Orleans following Hurricane Katrina.
In August 2010, Company B 1-181 IN deployed for one year of service with the International Security Force in Afghanistan in support of Operation Enduring Freedom.