The top U.S. military commander overseeing the Middle East said Tuesday that despite the nuclear deal, Iran shows no signs of altering its destabilizing behavior.

"There are a number of things that lead me to personally believe that, you know, their behavior is not — they haven't changed any course yet," said Army Gen. Lloyd Austin, commander of U.S. Central Command, at a Senate hearing.

Following Monday's incident on Israel’s northern border, Russia has instructed Hezbollah to calm down. According to Al-Arabia reports, Moscow, which assists Tehran's Lebanese proxy militia in Syria, has made a direct request to desist from further “igniting the wick of confrontation” between the terror organization and Israel.

Last month, when President Vladimir Putin of Russia announced plans to sell a powerful anti-missile system to Iran before the lifting of international sanctions, Israel was quick to join the U.S. in expressing shock and anger.

But behind the public announcements is a little-known web of arms negotiations and secret diplomacy. In recent years, Israel and Russia have engaged in a complex dance, with Israel selling drones to Russia while remaining conspicuously neutral toward Ukraine and hoping to stave off Iranian military development. The dance may not be over.