The term of an enlistment shall be for two years, unless terminated by discharge or removal from the institution as a student. Each cadet shall be required to take the following oath of enlistment: “I do solemnly swear [or affirm] that I will bear true faith and allegiance to the United States of America and to the state of Kansas, and that I will serve them faithfully and honestly against all their enemies whomsoever, and that I will obey the orders of the governor and of the officers appointed over me.”