Final answer:
Controlling key railroad networks during the war provided strategic advantages such as efficient troop movement, medical support, and limiting the enemy's mobility.
Step-by-step explanation:
Controlling key railroad networks during the war provided several strategic advantages. Firstly, it allowed for the efficient movement of troops, supplies, and ammunition across long distances, enabling faster response times and logistical support. Secondly, it helped to evacuate and transport injured soldiers from the front lines to medical facilities, facilitating medical care. Lastly, controlling key railroads limited the enemy's ability to move their own forces and resources, weakening their overall position.
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