The warning shows tensions remain high in and around the Strait of Hormuz, where Iran seized tankers in late April and early May.
The IDF's Nahshon landing craft will provide a new tactical boost for any potential future war with Hezbollah.
The Ukrainian military has been seeking to create a fleet of 100 naval drones.
Russia has said it would treat any ships leaving or entering Ukrainian ports as valid targets.
Iran’s decision to join with the Russians is more symbolic than important because neither countries have navies that can challenge the US or the West.
Russian media reported that the servicemember was offered Ukrainian citizenship and money by Ukraine's Security Service.
Russia's defense ministry said it had struck Odesa, where the Ukrainian navy has its headquarters, and Mykolaiv, near Ukraine's Black Sea coast.
JPOST Digital Library
