In Joseph Heller's "Catch-22," a crucial dialogue illustrates that the real enemy is not defined by nationality or allegiance, but by the threat to one's life. Yossarian highlights the absurdity of war, suggesting that anyone who endangers you is an enemy, regardless of whether they are on the opposing side. This perspective questions traditional notions of loyalty and enmity in the chaos of conflict.

This sentiment underscores the flawed nature of warfare, where the arbitrary lines between friend and foe dissolve in the face of survival. Heller’s work suggests that self-preservation is a fundamental instinct, challenging the reader to reconsider the complexities of morality in war. Ultimately, the real enemy may not be easily identifiable and may even exist within one’s own ranks.