India, April 6 -- In a stark escalation of diplomatic pressure and regional instability, Iran has urged Italy to take a firm stance against what it described as a US-backed war in the Middle East, just as an unidentified missile struck an Italian military base operating under the United Nations Interim Force in Lebanon, raising alarm across European and global capitals.

The twin developments, a direct appeal from Tehran and a physical strike on European forces stationed in a volatile war zone, underscore how rapidly the conflict is expanding, with expanding conflict across the Middle East now pulling in international actors and threatening to destabilize an already fragile regional order.

The Iranian Embassy in Rome, in a strongly word...