1) the lead flat car is used to detonate mines placed by sabateurs without damaging the main units
2) Carry repair rails and ties
3) send a single scout car ahead to check the rails ahead of the main train.
4) clear the sides of the track a given distance to keep attackers at a distance - or in open country.
In Europe the topography in many areas make rail (or water) the only effective way of travel. Controlling and maintaining the rail system is essential to mounting and supplying military operations.
The German and Russian railroads were different gauges. German work trains backup up by the armored trains were used to rapidly move one rail on the Russian tracks and thus provide for continued efficient transport forward.
The railroads also provided the means of moving some of the large seige guns to the battlefield.
Although my interest at this point is mainly WW II, armored military trains have a long history including the Boer War, the Russian Revolution and Large Mortors in the American Civil War.
Val Kraut
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