Amir-Ali Hajizadeh is Iran 's Commander of the Aerospace Force of the Islamic Revolution Guards Corps ( IRGC ) .
Iran was on the highest state of defensive alert and cccordingt o Commander of the Aerospace Force of the Islamic Revolution Guards Corps ( IRGC ) Amir-Ali Hajizadeh , was `` totally prepared for a full-fledged war '' .
Ukraine International Airlines Flight 752