Add a New Reasons gays should serve in military. According to figures released Monday, the Defense Department last year dismissed the fewest number of service members for violating its the policy than it had in more than a decade. Military law mandates celibacy during the first 10 years of service for all enlistees. The MOD's policy since 12 January is to allow homosexual men, lesbians and transgender personnel to serve openly, and discrimination on a sexual orientation basis is forbidden. Defence Minister Azeredo Lopes considered any discrimination "absolutely unacceptable".