Among the many rifts that have opened up in the international order, the dispute over Iran's nuclear program is one that could lead to a really big rift.
Ultimately, the question here is whether a nuclear arms race is developing in one of the world's most conflicting regions.
Iran's neighbors will not stand idly by if the regime in Tehran, which is already strategically reaching far into Arabia, should also arm itself with nuclear weapons.
Since the change of government, this can unfortunately be ruled out even less than in the past.
The new hardliner government seems to have little interest in a negotiated solution, which the International Atomic Energy Agency is also feeling.
With the stocks of enriched uranium that already exist in the country, it would probably not be far to build a first bomb.
This is primarily a consequence of the exuberant Iran policy of former US President Trump.
Had he not terminated the nuclear deal, Iran's military nuclear activities would have been restricted until 2026, some even until 2031.
His folly will possibly give Israel a bitter choice much sooner: between a military strike with an uncertain outcome and reliance on deterrence.
In the case of Iran, many in America and Europe will struggle with the latter.