South Korea is now free to develop missiles of whatever payload and range it chooses after an agreement last month between US President Joe Biden and South Korean President Moon Jae-in. But the move, Al Jazeera reports introduces new security risks and some analysts are concerned about the potential effect on the wider region. The key will be how far South Korea chooses to go with its missiles. “By developing missiles with a longer range that can reach major cities inside China, South Korea will have less resistance to the deployment of US missiles that could target China,” said research fellow Daniel Bong, before specifying, “I’m talking about nuclear missiles.”