Recently Pakistan-Egypt began first-ever joint air defence exercise, What is the name of that exercise?

Recently Pakistan-Egypt began first-ever joint air defence exercise, What is the name of that exercise?

A. Shaheen (Eagle)-IX
B. Aces Meet 2021
C. Sky Guard-1
D. None of these

The opening ceremony of first-ever Pakistan-Egypt joint air defence exercise “Sky Guard-1” 2021 was held in Egypt’s capital Cairo on Friday, according to Inter Services Public Relations (ISPR).
The military’s media wing said that the two-week-long joint exercise is aimed to bolster the military cooperation between two countries in face of existing and emerging threats in the air defence domain.