HNS (host-nation support)

HNS stands for host-nation support. NATO defines it as civil and military assistance rendered in peace, crisis and conflict by a host nation to allied forces and organizations that are located on, operating in or transiting through that nation's territory. The definition appears in the NATO Logistics Handbook.

HNS is a NATO logistics and operational-planning concept. It describes how support is arranged between governments, not how a single purchase is made. NATO's acronym glossary, AAP-15, lists HNS as "host-nation support" and HNSA as "host-nation support agreement."

What host-nation support can include

NATO states that HNS can include materiel, facilities and services. The services it names include area security and administrative support. The range is broad because the support covers both civil and military assistance, and it applies across peace, crisis and conflict.

• Materiel: supplies and equipment provided by the host nation.
• Facilities: infrastructure and premises made available to allied forces.
• Services: including area security and administrative support.

NATO's AJP-3.4 doctrine uses the same framing. It describes HNS as support for forces located on, operating on or from, or transiting through host-nation territory.

Host nation and sending nation roles

Two parties define the concept. The host nation (HN) provides the support. The sending nation (SN) is the nation whose forces are deployed into or through the host nation's territory. NATO as an organization can also be the party receiving support.

The support is not informal. NATO states that it is based on negotiated arrangements between the host-nation government and the sending nation and/or NATO. The host nation is therefore a government partner in the arrangement, and the support is not simply goods bought on the open market.

HNS compared with local contracting

NATO separates HNS from local contracting. In its logistics guidance, NATO describes HNS as a formal means of securing support from the host-nation government. Local contracting, by contrast, purchases supplies and services directly from the local economy.

The distinction comes down to who supplies the support and under what arrangement:

• With HNS, the source is the host-nation government, working under an agreed arrangement.
• With local contracting, the source is a business in the local economy, selling directly to the buyer.

The agreements behind HNS

NATO associates formalized HNS with the existence of a Status of Forces Agreement. That agreement is the kind of foundation on which HNS arrangements generally rest. The term HNSA, host-nation support agreement, names the arrangement itself.

When a document refers to HNS, it is referring to support secured through these government-level arrangements. The terms of that support are set by what the host nation and the sending nation or NATO have negotiated.

What HNS means for a supplier bidding on Canadian public contracts

HNS is a NATO planning term, so it is most likely to be met in defence, logistics and allied-operations requirements. When it appears in a solicitation or related document, read it as a reference to support arranged between governments. It does not describe a direct purchase from a supplier.

Bid teams should check how each requirement is sourced. Support provided through HNS comes from the host-nation government under a negotiated arrangement. A requirement met by local contracting is bought directly from the local economy. Confirm which route a requirement follows, and read the solicitation documents for the exact wording, before you plan your pricing, delivery or subcontracting around it.