Following the establishment of the Islamic Republic, a new anthem for Afghanistan, a Mujahedin battle song, composed back in 1919, was granted along with other new national symbols. During the rule of the Taliban over Afghanistan, from 1996-2002, the anthem was used by the pro-government Northern Alliance fighters in the war against them to retake the government. Upon the restoral of the government, the anthem was reinstated, but a new anthem was soon requested to once again reflect the new Afghanistan.
Special thanks to: Michael Bristow and Josh Lim for some of this information, and Reinhard Popp for additional information and the lyrics.