European Union Military Staff
The Military Staff of the European Union (EUMS) is the directorate-general of the European Union's (EU) External Action Service (EEAS) that contributes to the EU's Common Security and Defence Policy (CSDP) by providing strategic advice to the High Representative (HR/VP) and commanding operations through its Military Planning and Conduct Capability (MPCC) operational headquarters. From the end of 2020, the MPCC will be capable of running executive operations of up to 2,500 troops, i.e.
Source: Wikipedia — European Union Military Staff (CC BY-SA 4.0)