“She is systematically biased in favor of the U.S. and Israel,” he went on, despite Europe “suffering from the consequences in terms of energy prices, while [U.S. President Donald] Trump gloats that this is good for the U.S. because they are oil exporters.”

Trump has given several different rationales for the start of the war with Iran, including removing the country’s repressive regime and preventing it from gaining offensive nuclear capabilities.

Borrell, a Spanish socialist who since leaving office has served as the president of the Barcelona Center for International Affairs, praised the approach of Spain’s prime minister, Pedro Sánchez, who has been Europe’s fiercest critic of Trump’s strikes on Iran.

Borrell argued that his successor as the EU’s chief diplomat, former Estonian Prime Minister Kaja Kallas, should “be clearer on condemning breaches of international law, whether done by Russia, Israel or the U.S.” because “we lose credibility [when] we use selectively international norms.”

Representatives for Kallas did not immediately respond to a request for comment.

The former top diplomat, who has long been critical of Israel’s actions in Gaza and has increasingly turned fire on the Commission since finishing his mandate, said the EU should not move ahead with the ratification of the trade agreement von der Leyen and Trump struck in Scotland last summer. “The deal was unfair from the beginning,” Borrell said. “They imposed 15 percent tariffs on us and we reduce our tariffs on them.”