As an operational-level international headquarters, the Joint Support and Enabling Command (JSEC) is part of the new NATO Command Structure. Its overall mission is to provide SACEUR with a secure Rear Area in crises up to maximum level of effort by supporting Nations in their planning, execution and coordination of Security, Force Protection and Area Damage Control.

The commanding officer of the JSEC is Lieutenant General Jürgen Knappe, he is dual-hatted as the commanding officer of the Multinational Joint Headquarters Ulm.

His command is exercised from the Wilhelmsburg-Kaserne in Ulm, Germany.