On 14 November 2020, the Sahrawi Arab Democratic Republic (SADR) president Brahim Ghali announced that he signed a decree bringing the 29 year old ceasefire to an end, citing an incident 2 days earlier in which Moroccan armed forces forcibly entered a crossing within the buffer zone that was being blocked by Sahrawi protesters, acts which the SADR considered a declaration of war. Since then the Polisario Front, the armed branch of the SADR, has been launching attacks against Moroccan positions along the 2,700 km sand wall that divides the territories controlled by Morocco since the 1991 ceasefire and the remaining 20% of the territory controlled by the SADR. Being outnumbered the Polisario Front uses highly mobile units to attack and adopts guerrilla techniques while Morocco has numerous troops engraved in bunkers along the sand berm forming the frontline. The Moroccan army has also started to use attack drones further complicating the Polisario's mobility capacity in this huge desert battlefield. Sahrawi military commander communicating with his units on the frontline near the 2,700 km long sand berm, built by Morocco, dividing the Western Sahara between the Moroccan controlled territories and Sahrawi liberated territories. Mobile camp in the desert in the northern second military region, Sahrawi Arab Democratic Republic, October 2021