DAKAR, Senegal (AP) — The United States is attempting to create a new military agreement with Niger that would allow it to remain in the country, weeks after the junta said its presence was no longer justified, two Western officials told The Associated Press Friday.

The officials, who spoke on condition of anonymity due to the sensitivity of the situation, said Washington was actively working on options for a revised deal aimed at retaining its foothold in the West African nation.

Niger plays a central role in the U.S. military’s operations in Africa’s Sahel region, Washington is concerned about the spread of jihadist violence where local groups have pledged allegiance to al-Qaida and the Islamic State groups. Niger is home to a major U.S. airbase, in the city of Agadez, some 920 kilometers (550 miles) from the capital Niamey, using it for manned and unmanned surveillance flights and other operations. The U.S. has also invested hundreds of millions of dollars in training Niger’s military since it began operations there in 2013.