Briefly explain Woodrow Wilson's liberal internationalism.

Woodrow Wilson's liberal internationalism was a foreign policy approach that emphasized the promotion of democracy, free trade, and collective security among nations. Wilson believed in the importance of international cooperation and the establishment of a League of Nations to prevent future conflicts. He also advocated for the principle of self-determination, which meant that nations should have the right to govern themselves without interference from outside powers. Wilson's liberal internationalism had a significant impact on shaping the post-World War I world order and laid the groundwork for future international organizations such as the United Nations.