Pakistan, June 17 -- DUBAI/LONDON - Iran's Supreme Leader Ayatollah Ali Khamenei is increasingly isolated after losing several key military and intelligence advisers in Israeli airstrikes, raising fears of miscalculation in Tehran's decision-making. Sources close to his inner circle say these losses have created a dangerous vacuum within Iran's most critical leadership structures.

Among the dead are Hossein Salami, commander of the Revolutionary Guards, Amir Ali Hajizadeh, head of the ballistic missile program, and spymaster Mohammad Kazemi. These men formed part of a 15- to 20-member group of loyal aides who advised Khamenei on national security and defense. Their absence has weakened the cohesion of Iran's strategic operations.

While ot...