Secretary of State Rex Tillerson has put Iran “on notice” yet again.

He also put several of our nation’s key allies on notice, too, by suggesting that the United States’ commitment to negotiated agreements isn’t as rock-solid as it must be.

Tillerson put the world on notice this week that the United States no longer thinks much of a deal meant to deny Iran the ability to develop a nuclear weapon. It’s part of Donald John Trump’s vow to renegotiate agreements that he says are worst in the history of humankind.

The Iran nuke deal falls into that category, according to the president.

The deal was brokered by former Secretary of State John Kerry in conjunction with foreign ministers from Great Britain, China, France, Germany and, oh yes, Russia. What would a U.S. withdrawal from the agreement mean to our partners?

This is just me, but perhaps it would mean that the United States isn’t a trustworthy partner. It well could fracture our international alliances, particularly as it regards the Brits, French and the Germans, who are critical players in our nation’s ongoing geopolitical struggle with forces that seek to undermine us at every turn.

I’m not going to assert that the Iran nuke deal is perfect in every single way. But it does allow for careful monitoring of the Islamic Republic’s intentions and it gives the United States plenty of room to re-impose economic sanctions if it’s determined that Iran isn’t complying with the terms of the agreement.

Tillerson’s comments centered on Iran’s continued support of international terrorism. OK, then. Deal with that separately, Mr. Secretary.

Although the secretary didn’t say directly that the Trump administration would back out of the nuke deal, he did sound a dire warning. According to Politico: “Apparently referencing a failed 1994 nuclear deal with North Korea, which now has nuclear weapons, Tillerson said Wednesday that the Iran agreement is ‘another example of buying off a power who has nuclear ambitions. We just don’t see that that’s a prudent way to be dealing with Iran.’”

Our partners are watching with great interest. I believe it would foolish to renege on a deal that took a long time to craft. After all, the United States isn’t the only actor in this drama.