Final answer:
Yusef Komunyakaa's "Facing It" primarily addresses themes of war and loss as the poet, a Vietnam War veteran, contemplates the Vietnam Veterans Memorial.
Step-by-step explanation:
Yusef Komunyakaa's poem "Facing It" predominantly deals with themes of war and loss. The poem reflects Komunyakaa's personal struggle as a Vietnam War veteran confronting his memories in front of the Vietnam Veterans Memorial. The imagery and emotions evoked in the poem convey the profound impact of the war and the deep sense of loss connected not only to the lives lost but also the parts of the self that are affected by such intense experiences.