Answer:
To the side of the communication trenches facing the enemy were excavated the trenches. These trenches were utilized to move troops, supplies, and equipment. While Britain depended on its men to transport supplies to advanced positions, the French frequently used tramways.
How did the trenches change World War I?
The Great War was not altered by the trenches alone! Two to three thousand years prior, trenches had already been excavated. Trenches were excavated by the Greeks, the Romans, the Normans, and the Crusaders; even Napoleon and his troops constructed trenches. The soldier is taught how to dig a trench in any military manual, whether it be an Austrian, British, French, German, Italian, or Russian one. The Boar War, the Manchurian War, and the American Civil War all saw the employment of trenches. Since previous battles were included in military history studies and official history textbooks, trenches were well-known and did not significantly alter the Great War. The Great War was altered by a number of causes. The lethal potential of contemporary weaponry, along with field defenses like trenches with a frontal barbed-wire fence and reinforced concrete block buildings (often referred to as pillboxes in English), mixed with the sheer numbers of men in the massive armies of the opposing sides. The military leadership of the various European countries, with the exception of the British Army (because they had a small professional army as opposed to the mass conscript European armies), were aware of all these factors prior to the start of the war, yet they still went ahead with the war planning of mass infantry assaults despite the likelihood of suffering significant casualties.