source: Undisclosed Source
actor1: Military Forces of Burkina Faso (2015-)
actor2: Islamic State (West Africa) - Greater Sahara Faction
location: Arbinda
notes: On 21 May 2021, the Burkinabe army fired mortar shells against a presumed ISWAP (Greater Sahara) militant position near the town of Arbinda (Arbinda, Soum). No casualties were reported.