SILVER SPRING, Md. –
The Walter Reed Army Institute of Research held an annual organizational or "O" day, where hundreds of people turned out to dunk the command team in water, play basketball, eat good food and sweat it out with Zumba at Forest Glen Annex, Aug.12. O-Day is one of the many traditions in the Army where Soldiers, companies, battalions, brigades get together to build esprit-de-corps and the morale for the unit.