Russia
The Russian military is divided into the Ground Forces, Navy, and Air Force. There are also three independent arms of service: Strategic Missile Troops, Aerospace Defence Forces, and the Airborne Troops. , the military comprised over 1 million active duty personnel, the fifth largest in the world. Additionally, there are over 2.5 million reservists, with the total number of reserve troops possibly being as high as 20 million. It is mandatory for all male citizens aged 18–27 to be drafted for a year of service in Armed Forces.
Conscription
In the Russian Empire, the military service time "owed" by serfs was 25 years at the beginning of the 19th century. In 1834 it was decreased to 20 years. The recruits were to be not younger than 17 and not older than 35. In 1874 Russia introduced universal conscription in the modern pattern, an innovation only made possible by the abolition of serfdom in 1861. New military law decreed that all male Russian subjects, when they reached the age of 20, were eligible to serve in the military for six years.