The Operational Support Command Land (Dutch: Operationeel Ondersteuningscommando Land, OOCL) is a support command of the Royal Netherlands Army. The command consists of multiple combat support and combat service support units that provide the army with a broad variety of services. The OOCL was established in 2009, with the simultaneous disbandment of 1 Logistics Brigade (1 Logistieke Brigade) and 101 Combat Support Brigade (101 Gevechtssteunbrigade).
The (Command & Control Ondersteuningscommando, C2OstCo), is based in Stroe and provides the army with all types of communications. The command consists of three signal companies and the Signals Service School:
The Joint ISTAR Command (Joint ISTAR Commando, JISTARC) is based in 't Harde, and is tasked with collecting, analysing and sharing intelligence. The command consist of the following units:
The Fire Support Command (Vuursteun Commando, VustCo) is based in 't Harde, and is responsible for providing the Dutch armed forces with ground-based fire support. The command consists of the following units:
The (formerly the 1 Civil-military Interaction Command) is based in Apeldoorn. It specialises in various forms of interactions between the army and non-military parties, such as local populations and NGOs, and psychological operations. It received its new name on 1 March 2026. It originated as the CIMIC Battalion, which became the Civil-Military Interaction Command in October 2013. The command, under a lieutenant-colonel, specialises in the following disciplines:
Its companies focus on operational CIMIC and psychological operations; socio-cultural expertise of (potential) mission areas and cultural heritage operations; and it also supervises a network of specialist reservists with a wide ranges of civilian knowledge.
The (Bevoorradings- en Transportcommando) is based in Stroe, and is tasked with the supply and transport for missions, exercises and foreign deployments. The command consist of the following units:
The (101 Geniebataljon) is based in Wezep, and is tasked with the construction and maintenance of military infrastructure such as roads, buildings and bridges. The battalion consists of the following units:
The (400 Geneeskundig Bataljon) is based in Ermelo, and provides medical services to the Dutch armed forces. The battalion consists of the following units:
The (Explosieven Opruimingsdienst Defensie) is based in Soesterberg, and is responsible for land and maritime explosive ordnance disposal. The service consists of the following units:
The Land Forces Command Staff Support Group (Ondersteuningsgroep CLAS) is based in Arnhem, and comprises various support and ceremonial units. The group consists of the following elements: