Answer:
An unhappy and pessimistic young soldier
Step-by-step explanation:
The narrator of A Shropshire Lad, by A. E. Housman is a young soldier. This soldier became unhappy after having lost all the people he loved, which made him a lonely and sad young man. In addition, all the poems that this soldier reads are talking about death, so he begins to become pessimistic and this contributes to his unhappiness.