Key Takeaways
- Canada and Australia have signed a government‑to‑government agreement for a $2.5‑billion over‑the‑horizon (OTH) radar system, marking the start of the delivery phase for a capability slated to become operational by December 2029.
- The radar is the first phase of a $6‑billion Arctic Over‑the‑Horizon Radar project, projected to add roughly $290 million annually to Canada’s GDP (2026‑2033) and create about 2,270 Canadian jobs per year during that period.
- The system forms part of Canada’s “Northern Approaches” surveillance network and the broader $38.6‑billion, 20‑year NORAD modernization plan, which aims to have most of its 30 projects fully operational by the early 2030s.
- Two permanent sites have been selected in Ontario—a 163‑hectare transmit site in Kawartha Lakes and a 288‑hectare receive site in Clearview Township—with work expected to begin this winter; the full radar will consist of two transmit and two receive sites.
- Ottawa’s newly created Defence Investment Agency is leading procurement, while an industrial and technological benefits agreement obliges BAE Systems Australia to partner with Canadian firms to develop domestic expertise in radar integration, sustainment, and related defence activities.
- Canada also plans a polar OTH radar to surveil the Arctic Circle, though that capability remains in early stages; the current OTH radar will detect objects beyond the Earth’s curvature, providing early warning of airborne threats approaching Canadian airspace.
- NORAD, established in 1958 by Canada and the United States, continues to evolve, having recently assisted in tracking a Chinese high‑altitude surveillance balloon that entered North American airspace.
- The agreement underscores a sustained binational commitment to Arctic defence, leveraging allied technology, domestic industry participation, and long‑term infrastructure investment to safeguard Canadian sovereignty in the North.
Overview of the Australia‑Canada OTH Radar Agreement
Canada’s Secretary of State for Defence Procurement, Stephen Fuhr, formally signed a government‑to‑government agreement with Australia’s Deputy Prime Minister and Minister for Defence, Richard Marles, in Canberra on Monday. The pact secures a $2.5‑billion over‑the‑horizon radar system supplied by Australian industry partner BAE Systems Australia. This agreement initiates the delivery phase of a capability that is projected to reach initial operational capability by December 2029. Fuhr emphasized that the project fits within a broader strategy to construct an integrated Arctic surveillance and communications network, enhancing Canada’s ability to monitor, understand, and respond to activity in the region.
Economic Impact and Job Creation Projections
The Arctic Over‑the‑Horizon Radar project, which Prime Minister Mark Carney said will see a total Canadian investment of $6 billion, is expected to generate significant economic benefits. Analysts estimate that the system will contribute nearly $290 million annually to Canada’s gross domestic product between 2026 and 2033. In parallel, the project should sustain roughly 2,270 Canadian jobs each year over the same interval, spanning manufacturing, engineering, construction, and sustainment roles. These figures illustrate the dual purpose of the procurement: strengthening national defence while stimulating domestic economic activity.
Role within NORAD Modernization and Northern Approaches Surveillance
The OTH radar constitutes a cornerstone of Canada’s “Northern Approaches” surveillance architecture, which is embedded in the larger $38.6‑billion, 20‑year plan to modernize the North American Aerospace Defense Command (NORAD) that began in 2022. NORAD modernization priorities span surveillance systems, communications technology, air weapons systems, northern infrastructure, and science and technology initiatives. Of the roughly 30 projects comprising this effort, most are slated to be fully operational by the early 2030s, positioning the OTH radar as a key enabler of persistent, long‑range detection across the Canadian Arctic and approaches.
Technical Description of Over‑the‑Horizon Radar Capability
Over‑the‑horizon radar exploits ionospheric refraction to detect objects far beyond the line‑of‑sight, effectively seeing past the curvature of the Earth. This capability provides early warning of airborne threats—such as aircraft, missiles, or unmanned systems—approaching Canadian airspace from distant approaches. The system’s long‑range reach complements shorter‑range sensors and satellite‑based tracking, creating a layered defence posture. Canada also intends to acquire a polar‑optimized OTH radar to surveil the Arctic Circle itself, though that effort remains in the conceptual and early‑development stages.
Site Selection and Infrastructure Plans in Ontario
In July 2025, the Department of National Defence identified the first two Canadian sites for the radar’s transmitter and receiver functions. The permanent transmit site occupies a 163‑hectare parcel acquired in the City of Kawartha Lakes, Ontario, while the corresponding receive site spans 288 hectares in Clearview Township, Ontario. Groundwork at these locations is anticipated to commence this winter, with construction of antenna arrays, power facilities, and communications links to follow. The complete system will ultimately comprise two transmit and two receive sites; the remaining two locations are still under evaluation, with a decision expected in the coming months.
Defence Investment Agency and Industrial Benefits Agreement
Procurement of the radar is being managed by Ottawa’s newly established Defence Investment Agency, created in October 2025 to streamline major defence acquisitions, although negotiations had commenced prior to the agency’s formation. As part of the contract, Canada has negotiated an industrial and technological benefits (ITB) agreement with BAE Systems Australia. The ITB obliges the foreign contractor to engage Canadian firms in work related to radar integration, sustainment, training, and ancillary defence‑sector activities. This arrangement aims to transfer technical know‑how, nurture domestic supply chains, and ensure that Canadian industry retains expertise in operating and maintaining the OTH system.
Broader Arctic Defence Strategy and Future Polar OTH Radar
Beyond the current OTH radar, Canada’s Arctic defence vision includes a dedicated polar over‑the‑horizon radar designed specifically to monitor activity within and around the Arctic Circle. While this polar capability is still in early planning stages, it will complement the mid‑latitude OTH system by filling coverage gaps near the pole, where conventional radar performance can degrade. Together, these systems will form a persistent, all‑domain awareness network that supports situational awareness, threat identification, and timely response to potential incursions—whether from state actors, non‑state groups, or environmental hazards.
Historical Context of NORAD and Recent Threat Responses
NORAD was founded in 1958 by Canada and the United States as a bi‑national command tasked with monitoring and defending North American airspace against the threat of Soviet bomber attacks during the Cold War. Over the decades, its mandate has expanded to include maritime awareness, missile defence, and response to unconventional threats. A recent illustration of NORAD’s relevance occurred when the command assisted in tracking a Chinese high‑altitude surveillance balloon that traversed both American and Canadian airspace, demonstrating the command’s continued utility in detecting and assessing unconventional aerial objects.
Timeline and Operational Expectations
The agreement signed in Canberra sets the radar on a path to initial operational capability by December 2029, with full system integration anticipated shortly thereafter. This timeline aligns with the broader NORAD modernization schedule, which expects most of its 30 constituent projects to be fielded by the early 2030s. Once operational, the OTH radar will deliver continuous, long‑range surveillance data to NORAD’s command and control infrastructure, enabling faster decision‑making and more effective allocation of interceptor aircraft, missile defence assets, and other response mechanisms.
Conclusion and Strategic Significance
Canada’s $2.5‑billion over‑the‑horizon radar procurement with Australia represents a tangible step toward fortifying the nation’s northern defences. By marrying allied technology with domestic industrial participation, the initiative not only enhances early warning capabilities against airborne threats but also delivers measurable economic returns and job creation. Situated within the expansive NORAD modernization effort and complemented by future polar radar concepts, the system underscores a sustained, binational commitment to safeguarding Canadian sovereignty in an increasingly contested Arctic environment. As geopolitical interest in the North intensifies, investments such as this OTH radar will be pivotal in maintaining awareness, deterrence, and the ability to respond swiftly to any challenge to Canada’s northern approaches.