JTA — Under the haze of neon lights and techno beats, Roni Tessler waited for legendary DJ Offra to begin his set in a Tel Aviv club. Minutes later, the music cut and the party was shut down. Israel had launched a wave of airstrikes on Iran, pummeling nuclear sites and triggering a 12-day war that would trap Tessler and nearly 100 other North American LGBTQ Jews in the country. Organized by the Jewish Federations of North America, the trip included 15 first-time visitors to Israel and came amid a broader sense of alienation many had been feeling in their...