A few years ago I wrote the following memo, which outlines foreign policy. You should compare the doctrine below with the post on Space Settlements and foreign policy. As you will see, the memo does not contain an elaboration on the third principle, but from the context its understanding can be deduced.
The foreign policy of the Humanist Republic of Mordan is based on the following three principles:
I The peaceful coexistence of different cultures, political ideologies and forms of society
II Non-interventionism and strict neutrality
III National Sovereignty is unconditional and nonnegotiable as long the peaceful coexistence among nations is not endangered
These principles have to be understood as complementary to each other, rather than as three stand alone rules. Their unity is the fundamental base of our foreign policy.
The idea behind these principles is the proposition that the primary responsibility of any government are its own citizens. From this very essential proposition it follows that no government should adopt a foreign policy, which unnecessarily risks the lives and security of its citizens, such as by provoking aggression of foreign powers.
Every nation has the right to determine how to organize its own society, so do we. But if we want to organize our society the way we want, we should acknowledge this right to other nations. By accepting differences among societies, we create a base for peaceful coexistence.
The second principle logically follows from the first, the peaceful coexistence among nations cannot be realized if we should interfere with the internal affairs of other nations, and at the other hand our own nation cannot allow any interference by any foreign power in our very own affairs. And there is no general reason for us to interfere with conflicts among other nations, as long as those conflicts are not directly affecting our own interests. Therefore our country should abstain of choosing sides in transnational conflicts which do not directly affect our country.