Esmail Ahmadi, chief of Basij intelligence, killed in Israeli airstrike amid escalating tensions. What are the implications for Iran and global security?
Esmail Ahmadi, key figure in Iran's Basij, killed in airstrike.
Iran threatens global retaliation as conflict escalates further.
US deploys 2,500 Marines, escalating military presence in the region.
Iran's leadership faces uncertainty after Khamenei's death.