India, April 10 -- When President Donald Trump returned to the White House last year, he was eager to pick up where he left off by strengthening ties with Europe's right wing. But now many of those same factions are expressing open revulsion at the Iran war, rupturing relationships that were supposed to usher in a new international order.

Although Vice President JD Vance campaigned for Hungarian Prime Minister Viktor Orban this week, such a display has become the exception rather than the rule among conservatives and far-right leaders in Europe.

Italian Prime Minister Giorgia Meloni refused to let the United States use an air base in Sicily to launch attacks on Iran. France's National Rally leader Marine Le Pen described his war goals a...