Israel’s assessment is shaped by Iran’s consistent adherence to its “unity of arenas” doctrine, which treats attacks on its regional proxies as direct threats requiring coordinated responses. By JFeedIsrael’s security establishment is preparing for a potential Iranian missile strike following Sunday’s IDF airstrikes on Hezbollah command posts in Beirut’s Dahiyeh district, according to reports from Channel 12 News.The heightened alert comes after intelligence indicated Iran had previously threatened direct retaliation if Israel targeted the Hezbollah stronghold in southern Beirut.According to the report, Iran issued a warning several days ago stating that any Israeli strikes in Dahiyeh would trigger a missile response from Tehran.Israeli defense officials are now assessing whether that threat remains active following Sunday’s operation, which saw three missiles strike two apartment buildings used as terrorist command posts in the densely populated neighborhood.The uncertainty centers on whether Iran’s warning was time-limited or represents an ongoing red line.“We don’t know if this was a threat valid only for that specific day, or if we’re now looking at a scenario where the Dahiyeh strike will push Iran to resume the war,” a security source told Channel 12.The strikes came hours after Hezbollah fired two rockets toward northern Israel, both of which were intercepted.Prime Minister Benjamin Netanyahu and Defense Minister Israel Katz issued a joint statement confirming the operation as a direct response to ongoing ceasefire violations by the Iranian-backed militia.Israel’s assessment is shaped by Iran’s consistent adherence to its “unity of arenas” doctrine, which treats attacks on its regional proxies as direct threats requiring coordinated responses.Tehran has previously demonstrated willingness to launch large-scale missile barrages at Israel, most recently during the October 2025 exchange that saw hundreds of projectiles fired at Israeli territory.The timing is particularly sensitive given ongoing U.S.-Iran nuclear negotiations.President Donald Trump recently warned that Iran faces “total destruction” if no deal is reached, while simultaneously confirming that Lebanon remains outside the scope of any potential agreement.Trump described Iran’s new Supreme Leader Mojtaba Khamenei as “more rational” than his late father, raising questions about whether Tehran’s calculus on regional escalation has shifted.Adding to the complexity, Iran has recently formalized a controversial fee system for ships transiting the Strait of Hormuz, charging vessels between $1.5 million and $2 million per passage despite Trump’s earlier warnings against such measures.The move signals Tehran’s willingness to challenge Western red lines even as nuclear talks continue.Home Front Command officials noted last week that the security situation “can change from zero to one hundred in an instant,” a warning that now carries added weight.While there is currently no specific intelligence indicating an imminent Iranian strike, defense systems remain on elevated alert status.Israel’s security establishment is now weighing whether Iran will prioritize its “unity of arenas” principle over the potential benefits of maintaining momentum in nuclear negotiations with Washington.The answer may determine whether the region faces another round of large-scale missile exchanges in the coming days.The post Israel braces for Iranian missile strike after Beirut attack appeared first on World Israel News.