The diplomatic shift follows claims by the Islamic Revolutionary Guard Corps that it used a new advanced air defense system to shoot down a US MQ-9 Reaper drone early Tuesday, which it identified as the 54th such aircraft destroyed. The IRGC also claimed it used naval mines to set two oil tankers ablaze in the waterway's southern approach. A senior Iranian official told Reuters that Tehran views recent US activities as an attempt to force a diplomatic breakthrough through military pressure.
