Iranian military sources have issued fresh threats of opening new fronts in the ongoing conflict, warning they could strike vital global shipping lanes if faced with further military pressure. An Iranian military source warned that Tehran could open additional strategic fronts in the war if the US and Israel strike Iranian islands or attempt to pressure the country through naval operations.
The threats target two of the world's most critical maritime chokepoints. The Iranian source specifically referenced the Bab el-Mandeb Strait, which connects the Red Sea to the Gulf of Aden and the Indian Ocean, and is a vital chokepoint for global trade, particularly oil and natural gas shipments. The source said: "If the enemy attempts any ground action on Iranian islands or any part of our territory, or tries to impose costs on Iran through naval movements in the Persian Gulf or the Sea of Oman, we will open other fronts as a 'surprise'."
The Bab el-Mandeb plays a key role in global trade as it is the only direct maritime access to the Suez Canal, the main link between Europe and Asia, with between 10% and 12% of international maritime trade passing through it annually. For Australia, which relies on sea trade for the vast majority of its imports and exports, such disruptions have immediate economic consequences. Ships often reroute around Africa via the Cape of Good Hope when the strait is threatened, adding 10 to 15 days of travel.
The Iranian warnings come as Iranian forces have declared the Strait of Hormuz closed, starting on March 4, 2026, threatening and carrying out attacks on ships attempting to transit the Strait. Roughly 27% of the world's maritime trade in crude oil and petroleum products goes through the Strait. Already, fully 20% of the world's oil supply and 20% of the world's supply of liquefied natural gas goes through the Strait of Hormuz, and as of mid-March the Strait was effectively closed with zero ships going through it in 24 hours, compared to well over 100 on a normal day.
The escalating maritime threats overshadow ongoing diplomatic efforts to end the conflict. Iran's Foreign Ministry has denied entering negotiations with the US, even as various intermediaries attempt backchannel discussions. The Israeli military estimates it would need several more weeks of fighting to complete its war goals in Iran, while President Trump said the US is holding productive talks to seek an end to the war, though Iran denied the existence of direct talks, and Pakistan, Egypt, Oman and Turkey have been playing a role in backchannel efforts toward reaching a US-Iran ceasefire.
The standoff reflects the broader challenge facing global markets and governments: military operations that disable infrastructure and disrupt shipping lanes remain difficult to reverse through conventional diplomacy. Tehran's terms to end the war include a "new legal regime for the Strait of Hormuz," which is a clear challenge to US, global, and regional interests. Without a resolution to the fundamental disputes over nuclear capabilities and regional influence, threats to critical shipping routes are likely to persist.