Washington DC, Oct. 16 -- US President Donald Trump on Thursday (local time) ruled out using nuclear weapons against Iran amid the ongoing conflict and expressed little inclination towards deploying American ground troops, even as the US military develops fresh strike options against Iranian energy infrastructure and nuclear facilities, including the potential use of the "mother of all bombs".

In an interview with Newsmax, Trump clarified that the weapon under discussion was not nuclear and said Washington did not need to resort to nuclear weapons to achieve its objectives against Tehran.

"Well, the mother of all bombs is not nuclear. It's not nuclear at all. This is just an extremely large bomb. It's like a tiny nuclear bomb, but the m...