Final answer:
Male-female buddy teams in the military are authorized when there is only one IET Trainee of a particular gender.
Step-by-step explanation:
In the case of male-female buddy teams in the military, they are authorized when there is only one IET Trainee of a particular gender.
This means that if there is only one male or female trainee in a group, the military may assign a same-gender buddy from another group to ensure safety and support. This is done to prevent the trainee from feeling isolated or to avoid any potential discomfort or unsafe situations.