Reading it, it was immediately apparent to me that it was a cold war allegory, which was a bit of a surprise to me. I didn't recall Dr. Seuss books having much in the way of sociopolitical commentary, and I still don't, outside stories like Yertle the Turtle or The Lorax. If the politics apparent in Yertle the Turtle went over my head as a child, it's possible that other allegories went over my head as well. I should go back and read those books again.