Mujahideen<span> forces caused serious casualties to the Soviet forces, and made the war very costly for the Soviet Union. In 1989 the Soviet Union withdrew its forces from</span>Afghanistan<span>.
Arising around the 1970s, the <u>mujahideen</u> were <u>Afghan fighters</u> who sought to protect their lands against the <u>Soviet invasion</u>.
Formed by a majority of Sunni Muslims and ethnic populations, the <u>mujahideen </u>started forming local troops that increased their power, fighting against the <u>Soviet forces</u>, who were forced to retreat in 1989.