News DeskLast Updated: 24 January 2026, 11:06 AM ISTShare Iran has issued a sharp warning to the United States, saying any military attack will be treated as an “all-out war”, as Washington deploys an aircraft carrier strike group Iran's supreme leader Ayatollah Ali Khamenei and US President Donald Trump (Photo: AFP) Tehran: A senior Iranian official has warned that Tehran will respond with maximum force to any US attack, describing the current American military build-up in the Middle East as a serious escalation. The warning comes ahead of the arrival of a US aircraft carrier strike group and other military assets in the region. Speaking on condition of anonymity, the official said Iran’s armed forces are on high alert and prepared for a worst-case scenario according to Reuters report.