Evian, June 16 -- US President Donald Trump on Tuesday warned Iran that "all hell will rain down" if the Islamic Republic intends to acquire a nuclear weapon during a high-stakes bilateral meeting with the Emir of Qatar, Sheikh Tamim Bin Hamad Al-Thani, on the sidelines of the G7 summit in France.

The crucial bilateral meeting in the French town of Evian-les-Bains laid bare an intricate diplomatic tango, with Trump leaning heavily on Qatar's strategic heft to lock down the deal, while simultaneously taking sharp, unprecedented aim at Israel's military conduct in Lebanon.

At the very heart of the discussions was the freshly minted agreement with Iran, designed to shut the door permanently on its nuclear aspirations. Underscoring the abso...