"Each battalion was organized as three rifle companies each of up to 240 men, and a support company of up to 190 men.[17] Infantry companies A through D belonged to the 1st battalion of a regiment, E through H to the 2nd, I through M to the 3rd; the letter ???J??? was not used. (Individual companies will be referred to in this article by company and regiment, e.g. Company A of the 116th RCT will be" . . . .