The targeting information has included the locations of American warships and aircraft in the Middle East, the officials said.

Russia is providing Iran with targeting information to attack American forces in the Middle East, the first indication that another major U.S. adversary is participating — even indirectly — in the war, according to three officials familiar with the intelligence.

The assistance, which has not been previously reported, signals that the rapidly expanding conflict now features one of America’s chief nuclear-armed competitors with exquisite intelligence capabilities.

Since the war began Saturday, Russia has passed Iran the locations of U.S. military assets, including warships and aircraft, said the three officials, who spoke on the condition of anonymity because of the matter’s sensitivity.

“It does seem like it’s a pretty comprehensive effort,” one of the people said.

more
https://www.washingtonpost.com/national-security/2026/03/06/russia-iran-intelligence-us-targets/