Key Points:
- Australia and Canada have finalized a historic
1.7billion(Aus1.7billion(Aus2.5 billion) agreement to export advanced over-the-horizon radar technology. - The high-frequency radar system will serve as a core component of Canada’s Arctic surveillance program to monitor airborne and maritime threats in the Far North.
- BAE Systems Australia will lead the industrial delivery of the system, with engineering and construction work scheduled to begin on July 1, 2026.
- Unlike conventional systems, over-the-horizon radars bounce signals off the ionosphere to track objects thousands of kilometers away beyond the Earth’s curvature.
Australia and Canada have finalized a historic defense export agreement that represents a major milestone in bilateral security cooperation. The two nations signed a record 1.7billion contract, equivalent to Aus 1.7billion contract, equivalent to Aus
2.5 billion, to export Australia’s highly sophisticated over-the-horizon radar technology to Canada. This agreement represents the largest defense export deal in Australian history. It also marks the first time that Australia has sold this world-leading high-frequency surveillance technology to an international partner, showcasing the strength of the growing security partnership between the two Commonwealth allies.
Traditional radar systems face strict limitations because they rely on a direct line of sight, making them unable to see past the horizon due to the natural curvature of the earth. Over-the-horizon radar technology solves this problem by refracting high-frequency electromagnetic waves off the ionosphere, a layer of the Earth’s upper atmosphere. This refraction allows the system to bend radio signals over the horizon, enabling operators to detect and track aircraft, stealthy missiles, and maritime vessels thousands of kilometers away.
Stephen Fuhr, Canada’s Secretary of State for Defence Procurement, and Richard Marles, Australia’s Deputy Prime Minister and Defence Minister, signed the government-to-government agreement at an official ceremony in Canberra. The formal signing moves Canada’s Arctic Over-the-Horizon Radar program into its active delivery phase. To secure long-term support, the Canadian government also signed a direct technology rights agreement and a comprehensive industrial benefits pact with BAE Systems Australia, which will lead the engineering and construction process.
Canada plans to deploy this powerful monitoring system to protect its vast northern borders. The Arctic region has become a focal point of geopolitical tension as competing global powers increase their military and commercial activities in the polar pathways. Canadian Prime Minister Mark Carney has emphasized the critical need to assert national sovereignty and expand early-warning capabilities in the Far North. Once operational, the new radar system will feed real-time tracking data directly into the North American Aerospace Defense Command, known as NORAD, allowing military commanders to identify potential airborne and maritime threats much faster.
Under the terms of the industrial agreement, BAE Systems Australia will work closely with Canadian aerospace and defense firms to build local capacity. This collaboration ensures that Canadian engineers and technicians gain the necessary technical knowledge to maintain and upgrade the radar system over its multi-decade operational lifespan. BAE Systems Australia is scheduled to begin the initial phases of the project on July 1, 2026. The Canadian military aims to achieve initial operational capabilities for the radar network by December 2029.
The physical layout of the new radar system will feature specialized transmitter and receiver stations located in southern Ontario, particularly around the Barrie and Kawartha Lakes regions. Canadian defense officials spent months evaluating hundreds of potential sites before selecting these locations, noting that the geographic requirements for optimal over-the-horizon wave propagation are highly rigid. Although the construction plans drew some local attention, defense planners confirmed that the chosen sites are essential to project high-frequency radar beams directly across the polar approaches where coverage gaps currently exist.
This landmark transaction highlights a broader trend among Five Eyes alliance members, who are increasingly looking to pool their resources and coordinate technology acquisitions. As global security dynamics become more unpredictable and traditional defense spending faces closer domestic scrutiny, middle powers like Canada and Australia are finding strategic value in direct bilateral transactions. This approach reduces dependence on singular manufacturing hubs and ensures that critical defense infrastructure is co-developed by trusted, long-term partners.
Australia has spent more than 40 years developing, testing, and refining this specialized high-frequency radar technology. The nation’s expertise is anchored in its Jindalee Operational Radar Network, commonly known as JORN. Located in the Australian outback, JORN provides a massive shield of continuous maritime and aerial surveillance across Australia’s northern approaches. By sharing the technical blueprints of this highly successful system, Australia is helping Canada build a tailored polar variant designed to withstand the harsh electromagnetic conditions of the Arctic atmosphere.
In the coming years, this $1.7 billion defense acquisition will serve as the cornerstone of Canada’s broader $38.6 billion NORAD modernization initiative. While the engineering demands of building high-frequency radars in the Far North are complex, the partnership with Australia dramatically accelerates Canada’s development timeline. By leveraging proven, field-tested technology rather than developing a system from scratch, Canada is securing its northern borders while setting a new standard for high-tech industrial defense cooperation.
