South Korea will purchase additional F-35A stealth fighters and Standard Missile-6 (SM-6) interceptors from the U.S. to defend against North Korean missiles and other emerging threats, the country’s defense procurement agency announced Monday.

The Defense Project Promotion Committee has approved five projects amounting to some $5.6 billion (about 7.3 trillion won), according to a Defense Acquisition Program Administration (DAPA) press release.