Which poet’s work often reflects on human suffering and the impact of war?

Wilfred Owen is well-known for his poignant reflections on human suffering, particularly as it relates to the brutality and futility of war. His poetry emerged from his own experiences as a soldier during World War I, and he focused on conveying the harsh realities faced by combatants, moving away from glorified portrayals of battle. Owen's use of vivid imagery and emotive language captures the physical and psychological trauma of war, as seen in his famous works such as "Dulce et Decorum Est," which starkly contrasts romantic views of warfare with the grim truth faced by soldiers.

The other poets listed do have significant contributions to literature but generally do not focus on war in the same way Owen does. Charles Baudelaire, for example, is better known for exploring themes of beauty, urban life, and existential despair, rather than the raw suffering of war. Elizabeth Barrett Browning often dealt with themes of love, social conditions, and personal plight, while Shel Silverstein is celebrated for his lighthearted children's poetry and whimsical style, lacking the grim focus on war that is central to Owen's work.