Did anyone out there realize the irony of today’s decision by the president of the United States to withdraw from a deal that aims to deny Iran the ability to acquire nuclear weapons?

Here’s how I see it: Seventy-three years ago today, the shooting stopped in Europe, ending one phase of World War II; the result of that was to build alliances with nations across the continent, those with which we fought side by side and, yes, those we opposed.

Those nations had lined up in favor of the 2015 Iran nuclear deal. They lobbied Donald J. Trump to stay the course, to improve it, to renegotiate a better deal if he saw fit. What’s more, didn’t Trump campaign for president in 2016 on a pledge to negotiate the “best deals” ever?

The president today — on VE Day — stuck it to our “allies,” the nations we helped liberate from tyranny in World War II.

The president has managed to isolate this nation from much of the rest of the world in its effort to prevent Iran from obtaining a nuclear weapon, which no self-respecting civilized nation anywhere on Earth wants to see happen.

I should point, too, that the deal struck by the Obama administration in concert with several other nations provides for the world’s most vigorous inspection process, which has resulted in Iran ridding itself of many centrifuges used to enrich uranium, the key component in the making of nuclear bombs.

Donald Trump, though, wants to speak directly to the hardliners among his inner circle of advisers — and to those voters who continue to abide by the fiction that isolating the United States from this country strengthens American interests.

It does nothing of the kind! It weakens the United States in a world that is shrinking at an accelerating pace.

I fear the president once again has failed to “make America great again.” He instead has made us untrustworthy among those with whom we once fought side by side.