US president says system will shield country from missile threats, including from space.

US President Donald Trump announces his latest defence plan: The Golden Dome.

Estimated at a cost of $175bn, it is designed to shoot down advanced missiles headed towards the United States.

Using both ground and space to detect incoming projectiles, it will far surpass a similar system used in Israel known as the Iron Dome.

But critics say it could prove ineffective and upset the balance of world power.

So, might the scheme lead to the militarisation of space and threaten the global order?

And could there be other motives behind Trump’s announcement?

Presenter:

Elizabeth Puranam

Guests:

Michael O’Hanlon, Senior fellow and director of research in foreign policy at the Brookings Institution

Youngshik Bong, Research fellow at the Yonsei University Institute for North Korean Studies

Marina Miron, Post-doctoral researcher at the war studies department at King’s College London