U.S. Secretary of State Marco Rubio said on Tuesday, 19 Aban that he was informed that the campaign of economic pressure against the Islamic Republic has been so successful that there is no longer any need to carry out extensive military operations. He added that economic pressure on Iran in the future will be even harsher.

Rubio said that if the Islamic Republic crosses specific red lines or takes actions that it should not take, the U.S. military will be ready to respond, but he declined to explain what those red lines are.

The U.S. foreign minister also said he has no doubt that the Islamic Republic wants a deal, but apparently it is still not ready to reach one. He added that if the Islamic Republic wants a nuclear energy program, it should have such a program like many other countries, and the United States is prepared to change Tehran’s positions.

Rubio warned that if the Islamic Republic decides to escalate tensions and carry out military action, it will pay a “very heavy price.”