No sane person would start a Global Thermonuclear World War III but Trump and Netanyahu are an insane match made in hell.
Iran is allied with Russia and Pakistan (which has nukes) has also declared it's support for Iran. Declaring war on Iran and ordering Tehran to evacuate implying a nuclear Threat will go down in the history books as the start of Word War 3.
https://farid.ps/articles/trump_threatening_to_nuke_tehran