Final answer:
President Woodrow Wilson viewed the establishment of the League of Nations as the most important element of the Treaty of Versailles, reflecting his vision for maintaining peace and preventing future wars.
Step-by-step explanation:
The most important element of the Treaty of Versailles in President Woodrow Wilson's view was the establishment of the League of Nations.
The League of Nations was one of Wilson's Fourteen Points and symbolized his vision for a new world order based on collective security and peace. It was intended as a forum where countries could resolve their disputes without resorting to war. Despite significant pushback from other allied leaders and his own Senate, Wilson succeeded in getting the League included in the Treaty, although the United States ultimately did not join due to the Treaty's rejection.