What it is
AJP-4.6, Allied Joint Doctrine for the Joint Logistic Support Group, is NATO's Allied Joint Publication describing how a Joint Logistic Support Group (JLSG) is formed, commanded and employed. The JLSG itself is "a joint, force generated, deployable logistic capability" that a Joint Task Force commander (COM JTF) can stand up for an operation, and once activated it provides "the tactical-level executive for command and control of COM JTF's assigned forces for the delivery of the joint logistic support network." Edition C, Version 1 was promulgated in December 2018, and it builds on the principles set out in AJP-4, Allied Joint Doctrine for Logistics.
The document names its own audience directly: it "is intended primarily as guidance for joint NATO commanders and staffs," and is "instructive to, and provides a useful framework for, operations conducted by a coalition of NATO members, partners and non-NATO nations," as well as being "a reference for NATO civilian and non-NATO civilian actors." It is not written for a company. Nations adopt the doctrine through NATO's own promulgation process rather than a law or a general contract clause, and the current edition carries a recorded national reservation from the United States on how it reads the LOGCON/TACON command relationship. A company's own connection to AJP-4.6 runs only through a contract to supply logistics, host-nation support or commercial services into an operation a JLSG is coordinating.
Why the JLSG exists and how it is built
The JLSG coordinates a joint force's logistics collaboration "with the exception of medical support" across nations, partners, host nations, logistic lead and role-specialist nations, international and non-governmental organizations, and contractor support, aiming to achieve economies of scale and reduce the overall logistic footprint of an operation. Four operating principles shape it: readiness (held above first-echelon combat troop readiness, to support reception, staging and onward movement), scalability (able to support anything from low- to high-intensity operations), modularity (built from addable or removable functional modules) and a tailored spectrum, from a small coordination cell to a fully augmented headquarters, decided during the operations planning process.
Command, responsibilities and their limits
COM JLSG answers to COM JTF for "the coordination and execution of operational-level logistic support," again excluding medical support, "using assigned national, host nation and/or commercial resources." The doctrine lists the authorities COM JLSG will normally hold, including designing the joint logistic support network (JLSN), coordinating National Support Element (NSE) assets when authorised, and establishing movement and transportation requirements, but it also draws a clear boundary around that authority: "COM JLSG should not be assigned as an area commander," and, separately, "COM JLSG shall not be the joint rear-area security commander." The standard organizational structure the doctrine names is "111+2 NSPA contractors."
The JLSG headquarters is built from named branches, including Plans, Supply and Services, Movement and Transportation, Host-Nation Support, Medical, Military Engineering, Civil-Military Cooperation, Intelligence, and Purchase and Contracts. The Purchase and Contracts (P&C) Branch is where a contractor's relationship with the JLSG sits: its responsibilities are "limited to contracting support" under the theatre head of contract's delegations, other than initial "First Entry" contracting, which the branch handles directly, and it is "augmented by the NSPA who will provide support related to NSPA contracts." The branch coordinates contracting activity with NSEs to avoid competing for resources, deconflicts other NATO, national, international, NGO and private-sector contracting agencies in theatre, establishes unfunded basic ordering agreements for use across NATO forces, and provides liaison "between civilian contractors, customers and financial controllers."
Deployment, sustainment and where contractors sit
The joint logistic support network (JLSN) is "a system of interconnecting logistic nodes, activities, organizations and sites, and their multimodal links" within the joint operations area, built from points of debarkation and embarkation, lines of communication, logistic bases, principally the Theatre Logistic Base (TLB), convoy support centres and staging areas. COM JLSG's own mission focuses on the "sustain" activity of NATO's operations framework: deployment (reception, staging and onward movement), sustainment (replenishment, host-nation support, operating bases), and redeployment (rearward movement, staging and dispatch). At the TLB, the JLSG's main hub, the doctrine is explicit that "contractors and the NSEs will most likely be collocated" there "but not under the command of COM JLSG." A JLSG's own units and resources, in turn, "could be provided by contractors, other government departments and, in exceptional circumstances, non-governmental organizations (NGO) and international organizations (IO)."
Command relationships and logistic control
COM JLSG's command and control rests on operational control of specifically assigned forces, tactical control of transiting units at JLSG nodes, movements control exercised jointly with battlespace owners, and a supporting/supported relationship in which COM JTF names COM JLSG the supported commander specifically during reception, staging, onward movement and redeployment when those are the main effort. Logistic control (LOGCON), the authority troop-contributing nations are asked to prioritise granting, gives visibility over logistic requirements, but the doctrine is precise about its limit: "there is no inherent authority to direct national elements, although nations may choose to grant this authority," and the Lexicon adds that LOGCON "does not confer authority over nationally-owned resources held by a national support element, except as agreed in the transfer of authority."
What it does not cover
AJP-4.6 excludes medical support from COM JLSG's own coordination responsibility throughout, even though the Lexicon's own definition of "logistics" includes "medical and health service support." Medical support is instead coordinated at JTF level, through AJP-4.10. The doctrine also sets no certification, accreditation or audit scheme of its own: it is a command framework, and the nearest thing to an assessment it describes is the internal "assessment" of a deployed JLSG's mission progress against its own operations plan, not a conformance check against the document.