A powerful Iran-backed Iraqi armed group told its fighters to prepare for the scenario of a long war in neighboring Iran should the United States launch strikes.Kataeb Hezbollah warned the US on Thursday of “immense losses” were it to start a war in the region, while a commander in an armed faction told AFP his group was “highly likely” to intervene in case of strikes.For all the latest headlines, follow our Google News channel online or via the app.“Amid American threats and military build-up indicating a dangerous escalation in the region, it is necessary” for all fighters “to prepare for a potentially long war of attrition,” Kataeb Hezbollah said in a statement.The commander told AFP that his group sees Iran as strategic to its own interests, and therefore any attack on the Islamic Republic “directly threatens us.”US-sanctioned Iraqi armed groups did not intervene during the 12-day war between Israel and Iran last year.This time, the commander said they would be “less restrained,”