The total cost of developing, deploying and maintaining the US Golden Dome missile defence system could reach around $1.2 trillion.
“The development, deployment and twenty-year operation of a national missile defence system, the specifications of which generally comply with the provisions set out in the presidential executive order, will require approximately $1.2 trillion,” the document states.
According to the agency’s calculations, the bulk of the expenditure will be on the procurement of weapons – approximately $1.03 trillion. The most costly component of the system will be orbital interceptors, which will account for around 70% of the cost of the weapons being procured (or around 60% of total expenditure).
The implementation of the Golden Dome project, as noted in the report, involves the formation of a space constellation comprising 7,800 satellites, the retention of the existing missile defence base at Fort Greely (Alaska), as well as the construction of two additional facilities equipped with early-warning radars and 120 interceptor missiles.
An additional component of Golden Dome will be the creation of 35 missile defence echelons, equipped with SM-3 Block IIA and SM-6 Block IB anti-ballistic missiles, Patriot PAC-3 MSE and THAAD anti-ballistic missile systems, as well as advanced GPI (Glide Phase Interceptor) systems for intercepting hypersonic missiles.

