With all the talk about shooting down a possible North Korean satellite launch, I wanted to see just where the legal authority for such an action would come from. It turns out that its clear: it’s legal under Chapter VII of the UN Charter to shoot it down. Let me just review some of the relevant treaty and UN Security Council Resolutions.

First, what legal rights does North Korea have to launch a satellite? The only right that I could find among the international treaties I looked at was an implied right in, among other Treaties, Article I of the Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies that states:


Outer space, including the Moon and other celestial bodies, shall be free for exploration and use by all States without discrimination of any kind, on a basis of equality and in accordance with international law, and there shall be free access to all areas of celestial bodies.

To be fair, this same sentiment is repeated in all the other preambles of the treaties I looked at so is generally accepted. This even guarantees this right to States that are not even signers of that treaty or members of the United Nations.

However, the recent UN Security Council Resolutions on North Korea, in particular UNSCR 1718 (2006), make it illegal for North Korea to launch a ballistic missile or even to continue to develop their ballistic missiles. Here are the relevant sections of that resolution:

Expressing profound concern that the test claimed by the DPRK has generated increased tension in the region and beyond, and determining therefore that there is a clear threat to international peace and security,

(Emphasis was in the original.) This line is talking about DPRK’s test of a nuclear weapon in October 2006 but it invokes Chapter VII for the all other actions it takes in the resolution by determining that there is a clear threat to international peace and security. After all, the introductory article 39 to Chapter VII states:


The Security Council shall determine the existence of any threat to the peace…

(Emphasis added.) By this determination the Council was invoking Chapter VII. That resolution went on to make international law by:

Decides that the DPRK shall suspend all activities related to its ballistic missile programme and in this context re-establish its pre-existing commitments to a moratorium on missile launching;

(Emphasis in the original.) Here it is calling it a “decision” that makes it international law. Note that by tying it to the test of a nuclear weapon back in 2006, the Council avoids the loophole in UNSCR 1540 which implies that a ballistic missile must be specially designed to carry WMD before it can be banned.

This clearly forms the legal foundation for shooting down a North Korean launch declaring North Korea’s satellite launch illegal, even if it is known to be a satellite. But is it good policy? I hope that tomorrow I can consider the technical factors that would help indicate whether or not it was a satellite launch or a test meant to maximize the range of a warhead. That might be one way of judging the purpose of the test during its powered flight.