In the poem, Dulce ET Decorum est, “ what form of warfare was used when the troops were protected significantly from small arms and were sheltered?

A. airborne warfare
B. Guerilla warfare
C. Trench warfare
D. biological warfare

In the poem, Dulce ET Decorum est, “ the form of warfare that  was used when the troops were protected significantly from small arms and were sheltered is known as the Trench warfare

Explanation:

In this poem the poet has talked about world war -I.In the first world war the warfare technique used was that of the Trench warfare.

In trench warfare long Trenches , narrow ditches are created by digging the ground and it was the place where the  soldiers lived. These trenches where very  muddy, uncomfortable and because of this many soldiers developed a  medical problems known as  trench foot.

Trench warfare was developed by the French military engineer Sébastien Le Prestre de Vauban .

These trenches offered shelter to the  soldiers  from the storm of fires that came from the rifle, machine gun of the enemy.

In the poem, Dulce ET Decorum est, “ the form of warfare that  was used when the troops were protected significantly from small arms and were sheltered is known as the Trench warfare

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explanation:

the answer is a because the astrophel does more and sidney goes to the astrophel more than stella.