I entered HBS in 1968. During my first year, graduate student deferments were eliminated. HBS extended its first year that year as an option for those who wanted to complete their second year without a summer break. The summer break threw you into the draft pool. They also offered anyone who chose to join the military the option of returning within five years to complete their second year. I returned to graduate in the class of 1973. Not having a formal section they put us into Section K.