In response to its recent nuclear and ballistic missile tests, South Korea and Japan have announced that they are imposing new unilateral sanctions on North Korea. The announcements directly follow the UN Security Council’s decision to impose new sanctions on North Korea. Japan is set to impose asset freezes on more people and entities that are related to North Korea’s nuclear and missile programmes and ban the entry of all ships that have docked at ports in North Korea. South Korea announced that it intends to blacklist a number of new senior North Korean officials and ban foreign missile and nuclear experts from entering North Korea from the South when their visits are perceived to be a threat to South Korea’s national interests.