Whose flag is this?

THIs flag is almost identical to that of the Arab Liberation Flag of 1952, and has served as the inspiration for this nation’s flag, as well as those of Egypt, Iraq, Sudan and Syria.

This country was previously split into north and south but was unified into a republic in 1990.

The red stands for unity and the bloodshed of martyrs, the white for a bright future and the black for the supposed dark past.

Do you know whose flag this is?