Why is The Soldier a sonnet?

The Soldier is a Sonnet because it follows the traditional structure of a sonnet, specifically the Petrarchan (or Italian) sonnet form. This includes having 14 lines of iambic pentameter with a specific rhyme scheme (abbaabba for the octave and cdcdcd for the sestet). Additionally, the sonnet form allows for the concise expression of deep and complex emotions, making it fitting for themes such as love and war which are present in The Soldier.