The United States has approved a potential $1 billion deal to supply support, spare parts, maintenance and training services for Saudi Arabia’s military helicopter fleet, the Pentagon announced on Monday.

The agreement — cleared by the State Department — covers both a logistics sustainment arrangement and aviation training for the Royal Saudi Land Forces Aviation Corps.

Under the arrangement, Saudi Arabia would obtain access to spare and repair parts for a broad range of US-origin helicopters — including Black Hawks, Apache attack helicopters, Chinooks and other rotary-wing aircraft — under a system known as a Cooperative Logistics Supply Support Arrangement.

The package also includes blanket-order aviation training, covering initial through advanced flight and maintenance instruction for pilots and support crews.

The United States’ approval follows a broader expansion of defence cooperation with Riyadh, including prior agreements on advanced weaponry and aircraft procurement.

The Pentagon stated that the proposed sale aligns with US foreign-policy and national-security objectives, enhancing the capacity of a strategic Gulf partner to maintain its existing fleet and operate more effectively.

Though the sale remains subject to Congressional review, US officials say it will not require deployment of US personnel to Saudi Arabia, and will leverage existing training infrastructure.

For Riyadh, the agreement represents a critical step in ensuring readiness and sustainability for its rotary-wing forces, bolstering operational capacity without the immediate need for purchasing new aircraft.

Analysts view the deal as part of a wider US-Saudi security pact that seeks to modernise Saudi forces, deepen military collaboration, and reinforce stability across the Gulf amid regional tensions.

The approval may also act as a precursor to further sales under the sweeping defence cooperation framework recently agreed between Washington and Riyadh.