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

Syrian gov't soldiers and the Kurdish-led Syrian Democratic Forces have agreed to cease fire after a night of fighting in Aleppo. Several civilians died in the clashes. The violence comes just days before an end-of-year deadline to merge the SDF with the Syrian army. | Al Jazeera English

Video shows the moment the US military seizes a second oil tanker off the coast of Venezuela, prompting anger in Caracas, with officials condemning the seizure as ‘theft and hijacking’. | Al Jazeera English

Police in the UK arrested protesters during demonstrations in support of Palestine Action, a pro-Palestinian network banned as a 'terror group' by the British government. The High Court is deliberating whether the ban is legal, while six detained activists on hunger strike are at risk of death. | Al Jazeera English