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.
Russian Railway Troops
Railway Troops of the Russian Armed Forces () are a railway troops service in the Logistical Support of the Russian Armed Forces. They are involved in ensuring the defense of Russia. Railway Troops Russian Armed Forces are designed to perform the tasks of rail services (preparation, construction, reconstruction and protection of the objects of railways). It is the oldest such force in the world, established in 1851, as a unit in the engineering corps of the Imperial Russian Army. The professional holiday of the Troops is celebrated on August 6.