Iranian Foreign Ministry spokesperson Esmail Baghaei criticized the United States on Monday, describing its presence in the region as "destabilizing" following its deployment of B-52 bombers in the Middle East.

At a news conference, Baghaei responded to questions about the military buildup, stating, "We have always believed that the presence of America in the region is a destabilizing presence," adding, however, that this "will not deter (Iran's) resolve to defend itself."

The US military announced on Saturday the deployment of B-52 bombers to the Middle East as a warning to Iran, which has pledged to respond to the Israeli aggression that targeted several of its military sites on October 26. 

The Pentagon stated that these deployments would occur in the coming months and highlighted the "flexibility of the US military movements around the world."

"Should Iran, its partners, or its proxies choose to target American personnel or interests in the region during this time, the United States will take every measure necessary to defend our people," Pentagon spokesperson Air Force Major General Patrick Ryder said in a statement.

Four Iranian soldiers were martyred during the latest assault on Iran, and officials reported limited damage to several radar systems.

Baghaei said that Iran's retaliation would be "definite and decisive." He also reaffirmed that Iran supports "all initiatives and efforts" to promote a ceasefire in Gaza and Lebanon, where "Israel" persists with its aggression.

During the news conference, Baghaei reaffirmed that Iran's official stance against altering its nuclear doctrine and pursuing atomic weapons remains unchanged. 

Quoting a recent speech by the Leader of the Islamic Revolution Sayyed Ali Khamenei, the Iranian diplomat emphasized that the Islamic Republic would be "equipped with everything necessary to defend" itself.

US, 'Israel' will bear the consequences 

On Saturday, Sayyed Khamenei warned that the United States and the Israeli occupation will bear the consequences of their atrocities. 

Speaking on National Day of the Fight against Global Arrogance, which commemorates the anniversary of the US embassy takeover by Iranian students on November 4, 1979, Sayyed Khamenei warned of the crushing response Iran would deliver in retaliation to the crimes carried out against the Islamic Republic and the Resistance. 

Sayyed Khamenei stressed that Iran's operations were not "revenge", but rather "a logical action, an approach aligned with religion, ethics, and Islamic Law, in accordance with international regulations," confirming that Iranian officials are constantly developing their political and military readiness to confront any hostility. 

Elsewhere, he made it clear that Iran will not leave any aggression unanswered.