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Iran has designated Argentina’s navy and air force as “terrorist organizations,” in retaliation for Argentina blacklisting Iran’s Islamic Revolutionary Guard Corps earlier this year.

Getting into it: Iran’s Foreign Ministry said in a statement Wednesday that the move was “based on the principle of reciprocity,” but didn’t mention Argentina’s army or announce any specific sanctions, making the step largely symbolic. Tehran acted under a 2019 law that lets it hit back at countries that follow the US in labeling the IRGC a terrorist group.

Milei, a close Trump ally, had his government blacklist the IRGC on March 31, about a month after the US and Israel launched their war on Iran, as Washington leaned on allies to do the same. Argentina cited Iran’s backing of Hezbollah, which it blames for the 1994 bombing of the AMIA Jewish community center in Buenos Aires that killed 85 people, the deadliest attack in the country’s history, as well as the 1992 bombing of Israel’s embassy there that killed 29. Iran has denied involvement in both attacks.

In a statement, Iran’s foreign ministry said “It is evident that the responsibility for all consequences arising from this matter will lie with the Argentine government.”

Iran has made similar moves against other countries, designating Britain’s Royal Navy and Royal Air Force less than two weeks ago after the UK’s own action against the IRGC, and the navies and air forces of all 27 EU countries in February.

This all comes as Milei has lined Argentina up squarely with the US and Israel in the war with Iran, putting him at odds with most other Latin American leaders, who have tried to stay neutral.