The United States warned Iran or its allies against any "escalation" in the wake of Israel's war with Hamas, two top US officials said Sunday, hours after the Pentagon moved to step up military readiness in the region.
"We are concerned at the possibility of Iranian proxies escalating their attacks against our own personnel, our own people," Secretary of State Antony Blinken said on CBS News. "We expect there is a likelihood of escalation."
"No one should take advantage of this moment to escalate to further attacks on Israel or, for that matter, attacks on us on our personnel."
Blinken said the United States, which has sent two carrier groups to the eastern Mediterranean, was "taking every measure to make sure that we can defend them. And if necessary, respond decisively."
Blinken's words echoed -- and served to reinforce -- an earlier message from Defense Secretary Lloyd Austin, who warned of a "prospect of a significant escalation of attacks on our troops" in the region.
Their comments came amid growing fears that pro-Iranian Hezbollah fighters in southern Lebanon, or other groups supported by Tehran, might take advantage of the tense situation over Gaza to enlarge the conflict and further stretch Israel's military.
But Austin, speaking on ABC News, issued a stern warning: "If any group or any country is looking to widen this conflict and take advantage of this very unfortunate situation that we see, our advice is: don't.
"We maintain the right to defend ourselves and we won't hesitate to take the appropriate action," he added.
The comments from the two most senior members of President Joe Biden's cabinet came hours after the Pentagon said it was upping readiness in the region in response to "recent escalations by Iran and its proxy forces."
Austin ordered the activation of air defence systems and notified additional forces that they may be deployed soon.
Austin did not say how many US troops would be added to those already in the region.
The Pentagon's moves came after what Austin had earlier described in a statement as "detailed discussions" with Biden.
"These steps will bolster regional deterrence efforts, increase force protection for US forces in the region, and assist in the defense of Israel," Austin said.
The steps continued the Biden administration's response since Hamas in the Gaza Strip attacked Israel on October 7, taking more than 200 hostages and killing at least 1,400 people, according to Israeli officials.
Tensions rising
Israel has since vowed to destroy Hamas, and says around 1,500 of the group's fighters were killed in clashes before its army regained control of the area initially under attack.
Austin said he had activated deployment of a Terminal High Altitude Area Defense (THAAD) battery and additional Patriot battalions "throughout the region."
"Finally, I have placed an additional number of forces on prepare-to-deploy orders as part of prudent contingency planning, to increase their readiness and ability to quickly respond as required," Austin said.
Tensions are rising along Israel's northern border with Lebanon after the Israeli army traded fire with the Iran-backed group Hezbollah amid fears of a new front opening as Israel battles Hamas.
In south Lebanon on Saturday, Hezbollah said four of its fighters were killed. Palestinian group Islamic Jihad said one of its fighters was also killed.
Armed factions close to Iran have threatened to attack US interests in Iraq over Washington's support for Israel.
Multiple Iraqi bases used by US-led coalition troops have been targeted in several attacks in recent days.
Israel's military said it would intensify strikes on Hamas-controlled Gaza ahead of a planned ground invasion.
The military has pounded Gaza with relentless strikes in response to Hamas's October 7 attack.
The bombing campaign has killed more than 4,650 Palestinians, mainly civilians, according to the Hamas-run health ministry, and reduced swaths of the densely populated territory to ruins.
A first trickle of aid entered the Palestinian enclave from Egypt on Saturday, but the 20 trucks permitted to cross have been described as a "drop in the ocean" given the needs of 2.4 million residents.
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