Answer:
The theme of the poem 'Somebody's Son' centers around the emotional toll of war on soldiers and their loved ones. The poet highlights the physical and psychological damage that soldiers endure during their service and after. He portrays soldiers as innocent young men who go to war with dreams and aspirations, but later come home broken and disillusioned. The poem also highlights the impact of war on families and society. Overall, the theme encourages readers to empathize with soldiers and their families and to question the senseless nature of war.