Dhaka, March 21 -- Iran's Revolutionary Guards (IRGC) rebuilt Hezbollah's military command after it was mauled by Israel in 2024, plugging gaps with Iranian officers before restructuring the Lebanese group and laying plans for the war it is now waging in support of Tehran, two people familiar with these IRGC activities said.

The overhaul was the first of its kind for Hezbollah, a Shi'ite Muslim group founded by the IRGC in 1982, pointing to a hands-on approach after the blows of the 2024 war, including the killing of its leader Hassan Nasrallah and other top commanders.

Iran's investment paid off, getting Hezbollah back on its feet in time to enter the war in the Middle East on Tehran's side after it was attacked by the United States an...