Final answer:
Germany and Russia were the nations not represented at the Paris Peace Conference
Step-by-step explanation:
The nations that were not represented at the Paris Peace Conference were Germany and Russia.
The conference was attended by many world leaders, including the leaders of Great Britain, France, Italy, and the United States. Japan was also present at the conference. These countries had different goals and demands for the peace negotiations, such as seeking revenge against Germany, obtaining reparations and territorial gains, and securing their own strategic interests.