Wall Street Journal:

Russian ships are ferrying large quantities of Iranian artillery shells and other ammunition across the Caspian Sea to resupply troops fighting in Ukraine, Middle East officials said, posing a growing challenge for the U.S. and its allies as they try to disrupt cooperation between Moscow and Tehran.

Over the past six months, cargo ships have carried more than 300,000 artillery shells and a million rounds of ammunition from Iran to Russia, according to the officials and documents viewed by The Wall Street Journal. Intelligence about the shipments has been shared with the U.S., people familiar with the matter said.

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