What is the theme of poem letter to pedro us citizen also called pete?

The theme of the poem "Letter to Pedro: U.S. Citizen, Also Called Pete" by Naomi Shihab Nye explores themes of identity, citizenship, and the immigrant experience. The poem delves into the life of Pedro, who, despite being a U.S. citizen and having served in the military, still faces challenges and discrimination due to his Hispanic heritage. The poem raises important questions about belonging, inclusion, and the complexities of American identity.