The US President's Golden Dome plan may cost $1.2 trillion over 20 years. This is much more than the $175 billion he said last year. The plan is to put weapons in space. The Congressional Budget Office made this estimate.

The CBO report is an analysis of one possible approach.

Trump ordered the system in his first week. He wants it to be ready before his term ends in 2029. He gave this order in his current term.

Trump said the threat from new weapons is getting worse. This is why he wants the Golden Dome system.

The CBO does not know all the details of the plan. This makes it hard to estimate the cost. The Defence Department has not given enough information.

The idea for the Golden Dome comes from Israel's Iron Dome. This system helped protect Israel from rockets and missiles.

Trump said Canada wants to join the US missile-defence program.

The Golden Dome will have ground and space-based parts. It will detect, intercept, and stop missiles.

Congress has already given $24 billion for the missile defence plan.

Gen. Guetlein talked about the costs of the Golden Dome. He said some estimates are too high. They just multiply the cost of old systems.

The general said the Golden Dome is focused on being affordable.

Sen. Merkley said the project is a giveaway to defence contractors. He said it is paid for by working Americans.

The president said the Golden Dome would cost $175 billion. The CBO estimated the space-based parts could cost $542 billion over 20 years.