Women have been serving in the military since the inception of organized warfare, in both combat and non-combat roles. Their inclusion in combat missions has increased in recent decades, often serving as pilots, mechanics, and infantry officers.

The recent history of changes in women's roles includes having women in the military. Every country in the world permits the participation of women in the military, in one form or another. In 2018, only two countries conscripted women and men on the same formal conditions: Norway and Sweden. A few other countries have laws conscripting women into their armed forces, however with some difference such as service exemptions, length of service, and more. Some countries do not have conscription, but men and women may serve on a voluntary basis under equal conditions. Alenka Ermenc was the first female head of armed forces in any of the NATO member states, having served as the Chief of the General Staff of the Slovenian Armed Forces between 2018 and 2020.