The big question, is this a part of President Trump's usual negotiating strategy of bluff and bluster or the opening moves in a major war campaign against Iran?

Evidence to date strongly suggests that the US is heading towards a major war against Iran.  Under presidents Biden and Trump, Israel has achieved remarkable influence over the US.  Trump is surrounded by an ardently pro-Israel coterie of aides, advisors and financial backers.  The president has made no secret that he is way to the far right of Israel's current hard-line government.  He has called for ethnic cleansing of Palestinians, he detests Muslims (unless they are ultra rich Gulf Bedouins) and, of course, now has Jewish relatives as part of his family.

Under the unlamented Biden, and now Trump, Israel has assumed control of US Mideast political and military policy.  Right now, two US aircraft carriers are steaming to stations within striking range of Iran and Yemen.  US B2 Stealth bombers are now posted at the US-British Indian Ocean base of Diego Garcia; further attack squadrons are based in Qatar, Turkey's Incirlik airbase, Egypt and Saudi Arabia.  Israel is preparing massive air strikes against Iran after already destroying most of its air defense system.

Yemen has received special attention because it had the temerity to lob some inaccurate missiles at Israel's principal air base to protest Irael's killing of over 60,000 Palestinians in Gaza.  Yemen also has made a few attacks on mostly European or Asian merchant shipping in the Red Sea.  No other Arab nation had the nerve to do so.  As a result, Yemen, the region's poorest nation, is being heavily attacked by the US and Israel.

US war plans for Iran call for bombing attacks on over 3,000 targets.  This means all military, industrial, telecommunications, power, food storage and transportation hubs, including ports and airfields.  Iran's oil and gas industry would be primary targets.  In short, Iran would be bombed back to the Stone Age.  Iraq suffered the same treatment in 2003 and has yet to recover.  Even Iran's medical, sewage and water treatment plants would become prime targets.  Efforts would be made to encourage Iran's numerous ethnic minorities – Arabs, Azeris, Kurds – to break way and form independent states.  Such was also done to Iraq.

The prime strategic goal of such a conflict would be to cripple Iran, eliminate what little military power it has, impose servile puppet governments on its fragments, leave Israel unchallenged in the Mideast and hand more land over to the Jewish state.  Israel just announced it will annex parts of 'Arabfrei' Gaza.  More Greater Israel will be in the cards.