What is one of the duties that only applies to men in the United States?

The duty that specifically applies only to men in the United States is to register for selective service. This requirement is part of the system established to draft individuals into military service if needed. Under the Military Selective Service Act, all male citizens and residents of the United States, ages 18 to 25, are mandated to register with the Selective Service System. Women are not required to register, reflecting historical and legislative decisions about military service and draft policies.

Understanding this duty in its historical context is important. It stems from traditional views on gender roles, particularly regarding combat and military responsibilities. While there have been discussions and moves toward gender-neutral draft legislation, as of now, the requirement remains applicable only to men, distinguishing it from other civic responsibilities that are shared across all citizens regardless of gender.