BERLIN

German Chancellor Friedrich Merz on Tuesday issued a stern warning to Iran, stating that refusing to return to diplomatic negotiations could lead to the "complete destruction" of its nuclear program.

In an interview with public broadcaster ZDF during the second day of the G7 summit in Canada, Merz warned that US President Donald Trump is considering joining Israel's military campaign.

“If the regime were willing to return to the negotiating table, then there would be no need for further military intervention. If not, then the complete destruction of Iran's nuclear weapons program may be on the agenda,” he said.

“And the Israeli army obviously cannot accomplish that because it lacks the necessary weapons, which the Americans do,” the chancellor added, suggesting possible US military intervention if diplomatic efforts fail. He noted that the Trump administration's decision could emerge "over the course of the day."

Israel doing ‘dirty work’ for us: Merz

In his harshest criticism yet of Iran's leadership, Merz warned that Tehran's nuclear program, military posture, and foreign policy pose threats not only to Israel but also to countries across the Middle East and Europe.

When asked by the journalist whether Israel was carrying out "dirty work" through its airstrikes on Iran, Merz agreed.

"I'm grateful to you for using the term 'dirty work.' That's exactly what Israel is doing for all of us. We are all affected by this regime. This mullah regime has brought death and destruction to the world," the German chancellor said.

He accused Iran of conducting attacks, committing "murder and manslaughter" in other countries, supporting anti-Israeli militant groups in the Middle East, and supplying drones to Russia in its war against Ukraine.

"Yes, Israel did dirty work there. I can only express my utmost respect for the Israeli army and leadership for having the courage to do that. Without their action, we might have seen this regime's terror continue for months and years, then possibly with a nuclear weapon in hand," he added.