The US's airstrike of Iranian nuclear facilities by B2 stealth bombers is seen as a rare direct military intervention under US President Donald Trump.
The US administration said the move was part of a new foreign policy called the Trump Documents.
According to US Vice President J.D Vance, this theory is shaped by three main principles.
First, it is necessary to clearly identify the national interests of the United States. Second, prioritize diplomatic solutions. Third, use overwhelming military power if negotiations fail to resolve the problem, then quickly withdraw, avoiding getting swollen into a prolonged battle.
This decision marks a significant change in Mr. Trump's cautious approach to the use of military force.
However, analysts have expressed skepticism about the consistency of this theory. Many opinions say that this could be just a tactical name-name to cover up a reactionary and intuitive foreign policy that lacks strategic depth.
Even within the Republican Party, some conservative voices fear that the US will be caught up in a new conflict in the Middle East, going against Mr Trump's initial campaign pledge to withdraw from "useless" wars.
During his previous term, Trump largely avoided extensive military intervention. Campaigns such as the killing of Is al-Baghdadi in 2019 and the assassination of Iranian general Qasem Soleimani in 2020 were carried out quickly and limitedly. However, this attack is larger in scale, raising concerns about the risk of escalating confrontation.
The airstrike came shortly after the Iranian Supreme Leader declared that it would not give up the right to enrich uranium. Washington viewed the statement as a sign that Tehran continued to pursue its nuclear program, despite previous warnings from the US and the West.
After the airstrike, Trump said he had reached a ceasefire, despite minor violations on the ground.
According to the latest announcement, the next round of dialogue between the US and Iran is expected to take place next week.
Observers say the Trump Academic will be tested through the results of the current crisis.
