Keeping the Faith

As Houthi rebels continue targeting commercial vessels in the Red Sea and surrounding waters, some ships have resorted to an unusual tactic: claiming to be Muslim to avoid being attacked.
The Houthis, who control parts of Yemen, have declared that their strikes focus on ships linked to Israel, the United States, and Western allies in retaliation for the war in Gaza. In response, certain vessels have begun broadcasting Islamic phrases over radio frequencies or displaying flags of Muslim-majority countries, hoping to signal religious or political alignment that would spare them from attack.
Maritime intelligence sources report that some crews have gone so far as to paint Islamic declarations or place Qur’anic verses on visible parts of their ships. The idea is that Houthis, who see themselves as defenders of Islam against Western aggression, may refrain from harming fellow Muslims or those showing Islamic symbols.
Beyond its strategic implications, this phenomenon raises a serious halachic question: may a Jew claim to be Muslim—or intentionally mislead others into thinking he is Muslim—to save his life? Throughout Jewish history, people have given up their lives rather than accept another religion. Idolatry is one of the three cardinal sins for which one must sacrifice his life rather than transgress (according to accepted halacha, but see Avoda Zara 26b and Tosfos there). Would declaring oneself to be a member of another religion, even falsely, be considered forsaking one’s faith?