has said Western claims that its drones are being used by Russia against Ukraine show the “effectiveness” of Tehran's unmanned aerial vehicles, Iranian media reported on December 25.The wave of demonstrations in solidarity with Amini, and against the hijab requirement and the clerical establishment, have evolved into the biggest threat to the Islamic government since it took power in the 1979 revolution.In response to a reporter's question about the arrests of dual citizens with ties to Britain, Iranian Foreign Ministry spokesman Nasser Kanaani said it reflected "London's destructive role" in what he described as "riots."Mass demonstrations against Iran's clerical establishment have been ongoing for months and are considered to be the biggest threat to the government's rule since it took power following the 1979 Islamic Revolution.Iran does not recognize the dual citizenship of Iranian nationals, and Western countries have charged that Tehran takes advantage of the situation by unjustifiably detaining dual and foreign nationals to use as leverage in prisoner swaps."