On May 4, 2019, North Korea fired short-range projectiles around the Northern Hodor Peninsula in Wonsan, and then on May 9, the North fired missiles believed to be short-range from the Sinori region in North Pyongan Province, 13 times in total in 1919. North Korea's short-range multiple rocket launchers and missiles are 240-300mm multiple rocket launchers and KN-02 and Scud C-type missiles with a range of about 70-300km, and our radar system is limited to detect, so we must develop a long-term long-range system to prepare for them. To defend North Korea's short-range missiles, the Iron Dome system operating in Israel and the THAAD system, a high-altitude strike system, are needed to defend long-range missiles. For the defense of the North's short and long-range missiles, a similar weapons system such as Iron Dome or THAAD could be introduced early, or an effective defense network could be established if it can be developed and responded by developing itself. North Korea's short-range and long-range missiles are within the Korean Peninsula, and its long-range missiles should be prepared for reckless surprise or provocations by the North by establishing a ballistic missile defense and Kill Chain system for the defense of South Korea by threatening its East Asian neighbors and allies such as the U.S. To this end, the government should work with the Agency for Defense Development(ADD) or the Korea Advanced Institute of Science and Technology(KAIST) to establish a system that can prepare for possible provocations at any time by securing its own technical skills.