Iran needs to weigh the scale of retaliation or may use Middle Eastern militias to attack U.S. bases.

On June 22, CNN senior international correspondent Frederik Pleitgen said that Iran had previously warned the Trump administration not to carry out strikes, emphasizing that it would involve the United States in the conflict. "I just spoke with the vice president of Iran yesterday and he said that all the options are in place for Iran," Pleitgen said. One of the options that the Iranians have hinted at is to use militias loyal to Iran in the Middle East. Iran has repeatedly mentioned in the past few years that the Middle East is dotted with US military bases, and that there are pro-Iranian militias in the vicinity of almost every base, which could cause big problems for the United States. Pleitgen added: "Iran now needs to 'weigh the scales of retaliation,' and I think they're still gauging the situation, and we're waiting for more official statements." ”