https://www.gatestoneinstitute.org/15456/sahel-region-islamic-state
Even if violent attacks are now mostly concentrated around the border of Mali, Niger and Burkina Faso, the unstable area subject to terrorism covers a huge area — equivalent to half of Europe or the United States — and is spread over five countries…. Because it involves such a huge territory, and because Europeans simply do not have the air support and intelligence capabilities of the United States, American support in the fight against terrorism in the Sahel is critical.
US President Donald J. Trump would understandably like the Europeans to do more to fight the Islamic State in the Middle East and Africa. He is right. Europe is more directly concerned by the destabilization of these regions than the United States. The continent is still dependent on the Persian Gulf for its energy supply, and a destabilization of the Sahel countries would lead to vast new migratory pressures on Europe. Most European Union countries, however, starting with Germany, refuse to draw conclusions about the consequences of the situation and increase their military spending and involvement in operations abroad.
In the short term, an American withdrawal would have disastrous consequences. US air support is absolutely crucial in the fight against terrorism…. The ideal would be for these five African countries to be able to fend for themselves in the fight against terrorism with Western material and logistical support, but without deploying troops from outside the African continent. I am a fervent advocate of letting Africa solve its problems as much as possible within an African framework, but it must be acknowledged that in several conflicts, this is still not realistic and possible.
On January 13, French President Emmanuel Macron convened a summit of the G5 Sahel, a group of five Sahelian countries (Chad, Burkina Faso, Niger, Mali and Mauritania) that are affected by Islamist terrorism. The location of the summit, the small city of Pau in the south of France, was not chosen at random: it hosts the base of France’s 5th Combat Helicopter Regiment. Seven of the thirteen French soldiers who died in a November 25, 2019 helicopter accident in Mali belonged to this unit. Since 2013, France has lost 44 soldiers in the Sahel.
According to the Africa Center for Strategic Studies:
“The Sahel has experienced the most rapid increase in militant Islamist group activity of any region in Africa in recent years. Violent events involving extremist groups in the region have doubled every year since 2015. In 2019, there have been more than 700 such violent episodes. Fatalities linked to these events have increased from 225 to 2,000 during the same period. This surge in violence has uprooted more than 900,000 people, including 500,000 in Burkina Faso in 2019 alone.”