Why is "Military railways" trending?

Wikipedia Overview

The military use of railways derives principally from their utility in the field of logistics, and, less usually, on their use as a platform for military systems, like very large railroad guns and armoured trains, in their own right. Railways have been employed for military purposes in wartime since the Revolutions of 1848. Improvements in other forms of transport have rendered railways less important to the military since the end of World War II and the Cold War, although they are still employed for the transport of armoured vehicles to and from exercises or the mass transport of vehicles to a theatre of operations. The US Air Force developed the Peacekeeper Rail Garrison mobile ICBM in the 1980s, but it never reached operational status. Railways have played an important role in the logistics of the 2022 Russian invasion of Ukraine.