How was the Battle of the Somme ""came to represent the futility (pointlessness) of the war"".

The Battle of the Somme started on July 1st 1916. It lasted until November 1916. For many people, the Battle of the Somme was the battle that symbolised the horrors of warfare in World War One; this one battle had a marked effect on overall casualty figures and seemed to epitomise the futility of trench warfare.

Explanation:

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.