US President Donald Trump officially announced his plans for a Golden Dome system that focuses on countering potential missile threats from China and Russia.
Mr Trump estimated that the Golden Dome would be completed within three years and cost about $175 billion.
But, how much will it really cost? What are the benefits and risks associated with deploying a space-based missile defense system like the Golden Dome?
And how might this move reshape the global balance of power, particularly in relation to China and Russia?
On The Big Story, Hongbin Jeong speaks with James D.J Brown, Professor of Political Science, Temple University Japan to find out more.