The conflict Hostile_encounter erupted Process_start after the withdrawal of Spain from the Spanish Sahara in accordance with the Madrid Accords ( signed Sign_agreement under the pressure of the Green March ) , by which it transferred Giving administrative control Control of the territory to Morocco and Mauritania , but not sovereignty .

During the late 1970s , the Polisario Front , desiring to establish Building an independent state in the territory , attempted to fight Hostile_encounter both Mauritania and Morocco .

In 1979 , Mauritania withdrew Escaping from the conflict Hostile_encounter after signing Sign_agreement a peace treaty with the POLISARIO .

Minor protests occurred Coming_to_be in Djibouti , Mauritania , the Palestinian National Authority , Saudi Arabia , and the Moroccan-occupied Western Sahara .

Beginning Process_start in 1975 , the Polisario Front , backed and supported Supporting by Algeria , waged a 16-year-long war for independence against Mauritania and Morocco .

Following the annexation of Western Sahara by Morocco and Mauritania in 1976 , and the Polisario Front 's declaration of independence , the UN addressed Expressing_publicly the conflict Hostile_encounter via a resolution reaffirming the right to self-determination of the Sahrawi people .

In 1979 , Mauritania withdrew Escaping from the conflict and territories , leading to a stalemate through most of the 1980s .

The neighboring Sénégal River Area contains Containing various vegetation types and covers parts or all of Mauritania , Mali , Senegal and Guinea .