If Israel attacks Iran, Iran will respond, according to Hezbollah:
"A decision has been taken to respond and the response will be very great," Hezbollah Secretary-General Sayyed Hassan Nasrallah said in an interview with the Beirut-based Al Mayadeen television.
"The response will not be just inside the Israeli entity - American bases in the whole region could be Iranian targets," he said, citing information he said was from Iranian officials. "If Israel targets Iran, America bears responsibility."
This would be seriously stupid on Iran's part.
Especially if it is true that Israel can't do the job.
Not that I'm here to rule either claim out.
Of course, this just might be Nasrallah's attempt to avoid his own designated Iranian role as sacrificial lamb in case Iran is attacked.