For Project Force, Al Jazeera's Alex Gatopoulos looks at the groups pressuring Mali's government as it hosts a regional summit focused on cooperation with its neighbours - who also face the same security challenges. | Al Jazeera English

Swedish activist Greta Thunberg was arrested by UK police under the Terrorism Act at the Prisoners for Palestine lock-on protest outside the offices of Aspen Insurance in London, which insures the Israeli weapons firm Elbit Systems. | Al Jazeera English

Leaders from Mali, Niger and Burkina Faso are hoping to find a way to repel advancing fighters linked to al-Qaeda. Al Jazeera’s Laura Khan explains what’s at stake at an Alliance of Sahel States summit in Bamako. | Al Jazeera English