Death of Qasem Soleimani (Jalali Dey 13), Dey 13. On this date in 1398, Qasem Soleimani, commander of the Quds Force of Iran's Islamic Revolutionary Guard Corps, was killed in an airstrike near Baghdad International Airport. The operation was ordered by the United States government and also resulted in the deaths of several others, including Abu Mahdi al-Muhandis, a commander of Iraq's Popular Mobilization Forces. This event triggered widespread national and international reactions, with numerous ceremonies held in various Iranian cities and some other countries. In Iran, funeral processions and mourning gatherings attracted millions of participants in cities such as Ahvaz, Mashhad, Tehran, and Kerman. The incident led to increased regional tensions and had significant political and security repercussions. Since 1398, due to its national significance and broad impact, this day has been designated as an important observance in both official and informal Iranian calendars. According to Islamic Republic sources, this observance is registered and presented in the official calendar in this form and with these descriptions.