What was the Unit designation of the Japanese - American unit that fought in Europe during WWII?

The 442nd Regimental Combat Team is an infantry regiment of the United States Army, part of the Army Reserve. The regiment was a fighting unit composed almost entirely of American soldiers of Japanese ancestry who fought in World War II. Most of the families of mainland Japanese Americans were confined to internment camps in the United States interior. Beginning in 1944, the regiment fought primarily in Europe during World War II, in particular Italy, southern France, and Germany.

The 442nd Regiment was the most decorated unit for its size and length of service in the history of American warfare. The 4,000 men who initially made up the unit in April 1943 had to be replaced nearly 2.5 times. In total, about 14,000 men served, earning 9,486 Purple Hearts. The unit was awarded eight Presidential Unit Citations (five earned in one month). Twenty-one of its members were awarded Medals of Honor. Its motto was "Go for Broke"

Gen. Dahlquist's order to take Biffontaine was also questioned because it was a farming town with only a few hundred inhabitants and was out of reach of artillery protection and radio contact with command.

On 12 November, General Dahlquist ordered the entire 442nd to stand in formation for a ceremony, and seeing K company's 18 men and I company's eight, demanded of Colonel Virgil R. Miller, "I want all your men to stand for this formation." Miller responded, "That's all of K company left, sir" (of 400, originally).