Who was Alireza Tangsiri, IRGC Navy chief behind Hormuz blockade?

Alireza Tangsiri was Iran's powerful IRGC Navy chief since 2018, known for leading operations in Persian Gulf and controlling strategic Strait of Hormuz. An Iran-Iraq war veteran, he shaped Iran's naval tactics and took strong stance against the US. His killing marks a major loss for Iran's military leadership and could further raise tensions across already volatile Middle East region.