What metaphors are used in Smart and Final Iris by James Tate?

"Smart and Final Iris" satirizes the U.S. military's attitude toward nuclear warfare by poking fun at the way the Pentagon gives secret code names to various scenarios for nuclear war. Satire often uses irony, wit, and sarcasm to reveal humanity's vices or stupidity and to make change possible. The purpose of satire is primarily moral, that is, it aims to provoke a response. A favored classical genre, satire remains popular in literature, film, and other art forms today, often targeting political figures and institutions.