Recent history of changes in women's roles includes having women in the military in many countries. Although most countries in the world permit 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 allowing for the conscription of 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.