27th Infantry Division (United States)
| 27th Infantry Division (1917–55) 27th Armored Division (1955–68) | |
|---|---|
27th Infantry Division shoulder sleeve insignia. The red stars depict the Orion constellation, punning on the surname of the division's World War I commander John F. O'Ryan. The Red circle on the outside is an "O", also for "O'Ryan". The letters inside form the monogram "NYD", for "New York Division". | |
| Active | 1898 1908–1919 1921–1945 1947–1968 |
| Country | United States |
| Branch | United States Army |
| Type | Infantry |
| Size | Division |
| Nickname(s) | "O'Ryan's Roughnecks" "New York Division" |
| Engagements | World War I Iraq War (as 27th Infantry Brigade Combat Team) |
| Commanders | |
| Notable commanders | Major General John F. O'Ryan |
The 27th Infantry Division was a unit of the Army National Guard in World War I and World War II. The division traces its history from the New York Division, formed originally in 1908. The 6th Division designation was changed to the 27th Division in July 1917.